1. Rushin is waiting at a stoplight. When it finally turns green, Rushin accelerated from rest at a rate of a 2.00 m/s² for a time of 15 seconds. Determine the velocity of Rushin's car during this time period. 7.5 m/s d. 30 m/s a. -30 m/s? с. b. 30 m/s? 2. Ima is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima has an acceleration rate of 8.00 m/s², determine the displacement of the car during the skidding process. 56.3 m с. cannot determine a. b. 240 m d. 4.3 m 3. A car slows down uniformly from a speed of 21.0 m/s to rest in 6.00 seconds. What was its average velocity? How far did it travel in that time? - 10.5 m/s; 0.29 m 10.5 m/s; 63 m b. 21.0 m/s ;126 m a. с. d. cannot determine

A rocket-powered sled moves along a track, eventually reaching a top speed of 219 m/s to the west. It then begins to slow down, reaching a complete stop after slowing down for 2.26 s. What was the sled s average acceleration and velocity during the slowdown phase? a. 96.9 m/s^2 west, not enough information b. 109.5 m/s^2 east, 109.5 m/s east c. 96.9 m/s^2 east, not enough information d. 0 m/s^2 0, 109.5 m/s west

Mohammed is driving his car at 80 km/hr speed from Alaya and Ahmed is driving his car at 60 km/hr from Thapti. If both start at the same time, with Ahmed 200 m ahead, the time in which Mohammed catches Ahmed will be  a. 3.6036 s b. 360.36 s  c. 36.036 s d. 18.018s

Driving down the road at a speed of 23.9 m/s, you suddenly notice a fallen tree blocking the road a distance of 82.0 m ahead of you. You step on the brake pedal and decelerate at a constant rate. What must the magnitude of your acceleration be so that you will come to a stop 6.6 m in front of the tree?   a. 3.79 m/s^2   b. 3.48 m/s^2   c. 3.22 m/s^2   d. 7.58 m/s^2

An automobile with an initial speed of 20 m/s accelerates at a rate of 5 m/s2. Use one of your kinematic equations and find how fast the car is moving after accelerating for 3 seconds.    a. 15 m/s.   b. 225.5 m/s.   c. 35 m/s.   d. 400 m/s.

A coin that is tossed straight up into the air. After it is released, it moves upward, reaches its highest point and falls back down again. Use one of the following choices (A through G) to indicate the acceleration of the coin during each of the stages of the coin's motion described below. Take up to be the positive direction. Answer choice J if you think that none is correct. A. The acceleration is in the negative direction and constant. B. The acceleration is in the negative direction and increasing. C. The acceleration is in the negative direction and decreasing. D. The acceleration is zero. E. The acceleration is in the positive direction and constant. F. The acceleration is in the positive direction and increasing. G. The acceleration is in the positive direction and decreasing. The coin is moving downward. A OF ΟΕ B

12. A ball is thrown straight up into the air. At each of the following instants, is the magnitude of the ball's acceleration greater than g, equal to g, less than g, or 0? Explain. a. Just after leaving your hand. b. At the very top (maximum height). 6. Just before hitting the ground.

7. A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s?. Determine the time for the feather to fall to the surface of the moon. a. 2.29 s b. 1.29 s. c. 1.29 m d. 0.29 s. a C d

3. You decide to flip a coin to determine whether to do your physics or English homework first. The coin is flipped straight up. a. What is the velocity of the coin at the top of its trajectory? b. If the coin reaches a high point of 0.25 m above where you released it, what was its initial speed? c. If you catch it at the same height as you released it, how much time did it spend in the air?

1. Jack drives a distance of 160 miles at an average speed of 35 miles/hr, followed by a distance of 190 miles at 75 miles/hr. What is his average speed over the 350-mile trip? Hint: Draw a labeled sketch of the trip. V avg miles per hour