Question

1) A car is accelerating in a straight highway from 1.1 m/s to 7.2 m/s after...

1) A car is accelerating in a straight highway from 1.1 m/s to 7.2 m/s after 3.3 seconds. What is the acceleration of the car?

2) What is the volume of a 9-pound wooden block if the density of wood is 0.8 gram per cubic centimeters? Answer in cubic centimeters (cm3).

3)The position of a body (in meters) is given by the function
X = 18.2 + 6.9 t + 0.2 t3
where time t is in seconds. What is the velocity of the body at time t=2 seconds?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. While enter a highway, a car accelrates from 15.m/s to 32.0m/s at a rate of...
1. While enter a highway, a car accelrates from 15.m/s to 32.0m/s at a rate of 2.90m/s^2. a. how far did the car travel while accelerating? b. how long did it take the car to accelerate from 15.0m/s to 32.0m/s^2 2.Using Newton's law of gravity, calculate the weight of a 90.0kg astronaut standing on the surface of a planet that has the same mass as the earth, but only half the radius of the Earth. 3. a 3,00kg pickup truck...
A race car moves such that its position fits the relationship x = (4.0 m/s)t +...
A race car moves such that its position fits the relationship x = (4.0 m/s)t + (0.65 m/s3)t3 where x is measured in meters and t in seconds. (a) A plot of the car's position versus time is which of the following? WebAssign Plot WebAssign Plot WebAssign Plot WebAssign Plot (b) Determine the instantaneous velocity of the car at t = 3.6 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the...
A race car moves such that its position fits the relationship x = (5.5 m/s)t +...
A race car moves such that its position fits the relationship x = (5.5 m/s)t + (0.60 m/s3)t3 where x is measured in meters and t in seconds. (b) Determine the instantaneous velocity of the car at t = 4.2 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the limiting process keep at least three decimal places in your answer.) Δt = 0.40 s . (???????) .   m/s (Use the interval...
Two cars drive on a straight highway. At time t=0, car 1 passes mile marker 0...
Two cars drive on a straight highway. At time t=0, car 1 passes mile marker 0 traveling due east with a speed of 20.0 m/s . At the same time, car 2 is 1.0 km east of mile marker 0 traveling at 26.0 m/s due west. Car 1 is speeding up with an acceleration of magnitude 0.30 m/s2 , and car 2 is slowing down with an acceleration of magnitude 0.50 m/s2 . At what time do the cars pass...
1). At time 0 s, the speedometer of your car reports 33 m/s. At a later...
1). At time 0 s, the speedometer of your car reports 33 m/s. At a later time 7, your car reports 27 m/s. Assuming you are accelerating at a constant rate. Find your acceleration. 2). A driver is driving uphill. He maintained his throttle, causing his car to constantly decelerate as it is coming up the hill. The road going up the hill is 217 m long and it took him 8.1 seconds to get to the top of the...
Starting from rest, a car speeds up uniformly to (4.80 + A) m/s in a time...
Starting from rest, a car speeds up uniformly to (4.80 + A) m/s in a time of 12.0 s. The car then travels with this speed for (15.0 + B) seconds before slowing down at a constant rate to a stop in 24.0 seconds. Determine the total distance in meters traveled from start to end. Round your final answer to three significant figures. (Hint: Sketch a velocity – time graph for the motion and use the graph to determine the...
please do 1,2 and 3 thanks 1.The position of a particle moving along the x axis...
please do 1,2 and 3 thanks 1.The position of a particle moving along the x axis is given in centimeters by x = 9.12 + 1.75 t3, where t is in seconds. Calculate (a) the average velocity during the time interval t = 2.00 s to t = 3.00 s; (b) the instantaneous velocity at t = 2.00 s; (c) the instantaneous velocity at t = 3.00 s; (d) the instantaneous velocity at t = 2.50 s; and (e) the...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. ____ hp (b) Find the instantaneous power output of the engine at t = 12.9 s, just before the car stops accelerating. ______ hp
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. (hp) (b) Find the instantaneous power output of the engine at t = 12.7 s, just before the car stops accelerating. (hp)
1. Starting from rest, it took you 12 seconds to accelerate your car to 24 m/s...
1. Starting from rest, it took you 12 seconds to accelerate your car to 24 m/s at a constant acceleration. Find your acceleration. 2.A prototype car starts from rest and accelerates at a constant rate to 60 m/s in 5.1 seconds. How much distance did the car travel during the 5.1-second accelerated motion? 3. A speeding driver noticed a police car parked about 443 m in from of him on the side of the road and reduced his speed at...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT