4. A car is decelerating at 3.2 m/s2 from an initial velocity of 9.6ms. What is...
4. A car is decelerating at 3.2 m/s from an initial velocity of 9.6What is the total displacement when it comes to a stop? a. 14.4 m b. 3.0 m c. 15 m d. 28.8 m
a car traveling 50km/h east accelerates at 0.25 m/s2 west. What will be its velocity and displacement: a) at 3min? b) when it passes it's the initial position?
A car starts from rest at a stop sign. It accelerates at 4.6 m/s2 for 7.4 s , coasts for 1.5 s , and then slows down at a rate of 3.2 m/s2 for the next stop sign. how far apart are the stop signs?
127) What is the final velocity of the sled at t-8 seconds? a) 2 m/s b) 8 m/s c 12 m/s d) 6m/s e) None of the above 128) What is the acceleration of the sled during this time? a) 6 m/s2 b) 2 m/s2 c) 4 m/s2 d) 8 m/s2 e) None of the above 129) A man runs around a circular track of diameter 2 meters. If he runs 2 complete laps, what is the total displacement of...
1 (a) A car accelerates from rest to a speed of 10.9 m/s in 8.4 seconds. Find the magnitude of the average acceleration. (b) If I accelerate for 5.3 seconds in my car at 2.6 m/s2 when I have an initial velocity of 20.9 m/s, what final velocity do I have? (c) If I apply an acceleration in the opposite direction to my initial velocity for 7.4 seconds of -3.2 m/s2 when I have an initial velocity of +21.6 m/s,...
A car starts from rest at a stop sign. It accelerates at 4.0 m/s2 for 9 seconds, coasts for 4 s, and then slows down at a rate of 3.0 m/s2 for the next stop sign. Howfar apart are the stop signs?
A car moves with an initial velocity of 19 m/s due north. Part A Find the velocity of the car after 5.6 s if its acceleration is 1.6 m/s2 due north Part B Find the velocity of the car after 5.6 s if its acceleration is 1.5 m/s2 due south.
A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour? b. If the car weighs 1.5 tons, what is its kinetic energy in joules (Note: you will need to convert your velocity to m/s)? c. When the driver applies the brake, it takes 15 seconds to stop. How far does the car travel (in meters) while stopping? d. What is the average acceleration of the car (in m/s2) during braking?
Consider a car moving in the positive direction with an initial velocity of 37 m/s slows down at a constant rate of -1.5 m/s2. What distance does the car cover in 10 seconds in meters?
3. During a very quick stop, a car decelerates at 6.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). a. What is the angular acceleration of its tires in rad/s2, assuming they have a radius of 0.28 m and do not slip on the pavement? b. How many revolutions do the tires make before coming to rest, given their initial...