Question

a) Two cars are set to race, one can only accelerate at a rate of 2m/s...

a) Two cars are set to race, one can only accelerate at a rate of 2m/s starting from rest, and the other can only travel at a set speed of 10 m/s. How fast does each car cover 400 m? Which car would cover a distance of 400 m faster?

b) If both cars from the previous question started from the same position, at what time would they have the same displacement? What is the displacement of the vehicles?

c) A truck covers 40 m in 8.5 seconds while smoothly slowing down at a constant rate ( acceleration is constant) to a final speed of 2.8 m/s. Solve for the truck's original speed and it's acceleration.

d) You are cruising at a speed of 60 mph (26.8 m/s} when a deer appears 100 m ahead of you. What is the maximum time you have to stop and what acceleration do you need to have to avoid hitting the deer?

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
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a...
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. Car A has an acceleration of 10.6 m/s2 and a maximum speed of 104 m/s. Car B has an acceleration of 11.7 m/s2 and a maximum speed of 87.5 m/s. (a) Which car wins the race? (b) By how many seconds does this car win the race?
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...
Two cars start from rest at the same location and at the same instant and race...
Two cars start from rest at the same location and at the same instant and race along a straight track. Car A accelerates at 6.6 f/s^2 to a speed of 90 mph and then runs at this constant speed. Car B accelerates at 4.4 f/s^2 to a speed of 96 mph and then runs a constant speed. (a) Which car will with a 3-mile race and by what distance? (b) What will be the maximum lead of A over B?...
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...
You're watching a car race and observe one of the cars going around a banked circular...
You're watching a car race and observe one of the cars going around a banked circular curve. The bank is tilted at about 20 degrees, meaning that the car is tilted sideways by this much while driving around the bank. The curve seems to be a semicircle in shape, and you see the radius of the curvature is about 18.0 m. a. If the car's tangential speed is constant, then why does the car feel acceleration? b. Draw a force...
One car has one and a half times the mass of a second car, but only...
One car has one and a half times the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 6.5 m/s, they then have the same kinetic energy. What were the original speeds of the two cars?
At t = 0, one toy car is set rolling on a straight track with initial...
At t = 0, one toy car is set rolling on a straight track with initial position 17.0 cm, initial velocity -2.7 cm/s, and constant acceleration 2.70 cm/s2. At the same moment, another toy car is set rolling on an adjacent track with initial position 9.5 cm, initial velocity 5.30 cm/s, and constant zero acceleration. (a) At what time, if any, do the two cars have equal speeds? (Enter NA if the cars never have equal speeds.) s (b) What...
On two occasions you accelerate uniformly from rest along an on-ramp in order to merge into...
On two occasions you accelerate uniformly from rest along an on-ramp in order to merge into interstate traffic at 65 mi/h. On-ramp A is 200 m long and on-ramp B is 400 m long. (a) Is your acceleration along on-ramp A greater than, less than, or equal to your acceleration along ramp B? (b) Choose the best explanation from among the following: (i) The shorter acceleration distance on ramp A requires greater acceleration (ii) In each case, you start from...
1. Motion of an object depends on its velocity only. True False 2. A car with...
1. Motion of an object depends on its velocity only. True False 2. A car with a mass of 2500 kg is traveling at a speed of 30 m/s due east. Choose the most appropriate answer to its momentum. a. 30 m/s due east b. 30 m/s c. 75,000 kgm/s d. 75,000 kgm/s due east 3. A car is traveling at 70 mph and then is involved in an accident with a head-on collision into a very solid wall. As...
can someome answer these please? A runner jogs one lap around the track that encircles a...
can someome answer these please? A runner jogs one lap around the track that encircles a football field (and, if it were me, would immediately collapse). If she ends where she began, and the distance is one-quarter mile, what is the displacement of the jogger? A rocket is fired from the launch pad, obtaining a speed of 650 m/s in 7.0 seconds. What is the average acceleration of the rocket? Round to the nearest integer. A coyote, closely related to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT