Question

A bullet travels down a rifle barrel with a velocity that depends on time: v =...

A bullet travels down a rifle barrel with a velocity that depends on time:

v = 2*105 t - 6*107 t2

The acceleration is not constant.

What is the acceleration as a function of time?

What is the position as a fuction of time?

How long does it take for the bullet to leave the barrel in seconds?

Find the speed at which the bullet leaves the barrel in meters/second.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
4. A rifle is aimed horizontally at a target 50 m away. The bullet hits 1.25...
4. A rifle is aimed horizontally at a target 50 m away. The bullet hits 1.25 m below the target. (a) What was the bullet’s flight time? (b) What was the bullet’s speed as it left the barrel? 5. A 1000-kg car traveling at a speed of 40 m/s skids to a halt on wet concrete where µk = 0.8. How long are the skid marks? 9. A curve at a racetrack has a radius of 100 m and is...
A sinusoidal wave travels down a long string. The y displacement of the string is given...
A sinusoidal wave travels down a long string. The y displacement of the string is given at right, as a function of both x position along the string and time t. Positions x and y are measured in meters, t is in seconds. Find the wavelength, frequency, and period of this waveform. y(x, t)=ysin(36.9t+2.43x) If x is to the right, what direction is this wave traveling? At time t = 0.0165 s, and a position x = 0.913 m, what...
1-The velocity of a particle is v = { 6 i + ( 28 - 2...
1-The velocity of a particle is v = { 6 i + ( 28 - 2 t ) j } m/s, where t is in seconds. If r=0 when t=0, determine particle displacement during time interval t = 3 s to t = 8 s in the y direction. 2-A particle, originally at rest and located at point (1 ft, 4 ft, 5 ft), is subjected to an acceleration of a={ 3 t i + 17 t2k} ft/s. Determine magnitude...
A 14.00 kg particle starts from the origin at time zero. Its velocity as a function...
A 14.00 kg particle starts from the origin at time zero. Its velocity as a function of time is given by v with arrow = 9t2î + 4tĵ where v with arrow is in meters per second and t is in seconds. (Use the following as necessary: t.) (a) Find its position as a function of time. r =________ (c) Find its acceleration as a function of time. a=_______m/s^2 ( (d) Find the net force exerted on the particle as...
    starting from rest, a car acceleration at a rate of 4 m/s2for 3 seconds. The car...
    starting from rest, a car acceleration at a rate of 4 m/s2for 3 seconds. The car then travels at a constant speed for 5 seconds. What is the total distance moved by the car?    what is the angle between the two vectors from the line 1 column 49 to line 1 column 73. Unexpected ‘<mstyle and from line 1 column 56 to line 1 column 95. Unexpected ‘<mi; ? The velocity of a particle as a function time along the...
A 3.00-kg particle starts from the origin at time zero. Its velocity as a function of...
A 3.00-kg particle starts from the origin at time zero. Its velocity as a function of time is given by v = (3t^2) i+ (2t) j where v is in meters per second and t is in seconds. (a) Find its position at t = 1s. (b) What is its acceleration at t = 1s ? (c) What is the net force exerted on the particle at t = 1s ?   (d) What is the net torque about the origin...
(1A) A transverse sinusoidal wave travels along a string with a constant speed 10 m/s. The...
(1A) A transverse sinusoidal wave travels along a string with a constant speed 10 m/s. The acceleration of a small lump of mass on the string (a) varies sinusoidally in time in a direction perpendicular to the string, (b) varies sinusoidally in time in a direction parallel to the string, (c) is 10 m/s 2 , (d) is zero. (1B) In a periodic transverse wave on a string the value of the wave speed depends on (a) amplitude, (b) wavelength,...
If a ping-pong ball is ejected horizontally from a bazooka at a constant velocity of 232...
If a ping-pong ball is ejected horizontally from a bazooka at a constant velocity of 232 m/s towards a soda can sitting 1000 cm away, how much time does it take for the ball to collide with the can? = 0.0431s The ping-pong ball from the previous problem strikes the can and continues through with a lower velocity of 112 m/s. A second soda can lie in wait some distance further down range. If the ball travels for another 0.201...
Question: You stand at the bottom of a long ramp (i.e. one used for wheelchair access)...
Question: You stand at the bottom of a long ramp (i.e. one used for wheelchair access) and throw a tennis ball towards the top of the ramp, as shown in the sketch. Assume that the tennis ball leaves your hands a height h = 1.800 m from the ground and at a speed of v0 = 14.00 m/s and an angle of elevation of 51.03°, as shown in the sketch. Take the origin of a Cartesian coordinate system on the...
A jet accelerates at a=3.92 m/s^2 from rest until it reaches its takeoff velocity of 360...
A jet accelerates at a=3.92 m/s^2 from rest until it reaches its takeoff velocity of 360 km/hr. It has to travel for 5 seconds at its takeoff velocity before taking off. What's the minimum distance that the jet will travel on the runway? A car backs up at a constant speed for a short time, then applies the brakes and steadily comes to rest. Sketch velocity-time and position-time graphs that depict the car's motion. Assume that the forward direction is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Use the information from the following Income Statement to create and Projected Income Statement and solve...
    asked 11 minutes ago
  • An unequal tangent vertical curve has the following elements: g1=-3.25%, g2=75%, total length = 500.00’, length...
    asked 13 minutes ago
  • Please write clear definitions of the following legal terms. Commerce Clause Supremacy Clause Indictment Tort
    asked 18 minutes ago
  • Do you think Moralistic Therapeutic Deism is an accurate reflection of society today? What are relevant...
    asked 22 minutes ago
  • The mean operating cost of a 737 airplane is $2,071 per day. Suppose you take a...
    asked 31 minutes ago
  • Arguments can be made on both sides of this debate about the ethical implications of using...
    asked 37 minutes ago
  • In the Chapter, they mention the idea of strategizing around your cash flows. Why are cash...
    asked 42 minutes ago
  • Company A signed a fixed-price $6,500,000 contract to construct a building. At the end of Year...
    asked 43 minutes ago
  • An unequal tangent vertical curve has the following elements: g1=-3.25%, g2=1.75%, total length = 500.00’, length...
    asked 50 minutes ago
  • In a previous​ year, 61​% of females aged 15 and older lived alone. A sociologist tests...
    asked 1 hour ago
  • Topic: Construction - Subsurface Investigation (Note: Briefly discuss in your own words, 1 paragraph minimum.) Typically...
    asked 1 hour ago
  • What is ethical sourcing? Why do companies engage in this practice? What are the benefits and...
    asked 2 hours ago