Why is the following situation impossible? Starting from rest, a charging rhinoceros moves 50.0 m in a straight line in 10.0 s. Her acceleration is constant during the entire motion, and her final speed is 8.00 m/s.

A commuter backs her car out of her garage with a constant acceleration of 1.9 m/s2. Assume that her initial motion is in the positive direction.     How long does it take her to reach a speed of 2.35 m/s in seconds?  If she then brakes to a stop in 0.65 s, what is her acceleration in meters per square second?

A motorcyclist heading east through a small town accelerates at a constant 4.9 m/s/s after he leaves the city limits (See figure). At time t = 0 s, he is 5.3 m east of the city-limits signpost, moving east at 27 m/s. Where is he when his velocity is = 37 m/s?

A car starts from rest at t = 0 s, and speeds up with a constant acceleration of 1.81 m/s2 for 6.00 s. Then it continues with a uniform speed for another 6.00 s. Finally, it speeds up with a constant acceleration of 2.02 m/s2 until it reaches a speed of 18.0 m/s. (a) How long does it take for the car to reach a speed of 18.0 m/s? Time is measured from the beginning at t = 0  (b) What is the total displacement of the car?

A helicopter carrying Dr. Evil takes off with a constant upward acceleration of 7.0 m/s2m/s2. Secret agent Austin Powers jumps on just as the helicopter lifts off the ground. After the two men struggle for 11.0 ss, Powers shuts off the engine and steps out of the helicopter. Assume that the helicopter is in free fall after its engine is shut off, and ignore the effects of air resistance.   What is the maximum height above ground reached by the helicopter?   Powers deploys a jet pack strapped on his back 7.0 ss after leaving the helicopter, and then he has a constant downward acceleration with magnitude 3.0 m/s2m/s2. How far is Powers above the ground when the helicopter crashes into the ground?

A train, traveling at a constant speed of 22.0 m/s, comes to an incline with a constant slope. While going up the incline, the train slows down with a constant acceleration of magnitude 1.40 m/s2.  The speed of the train after 6.40 s on the incline is 13.0 m/s How far has the train traveled up the incline after 6.40 s?

tortoise crawls the entire 1000.0 meters at a speed of 0.20 m/s. The rabbit runs the first 200.0 meters at 2.0 m/s, stops to take a nap for 1.3 hours, and awakens to finish the last 800.0 meters with an average speed of 3.0 m/s. Who wins the race and by how much time? Get to destination at the same time. Rabbit wins by 47 s Tortoise wing by 47 s O rabbit wins by 2.02 hrs Tortoise wins by2.02 hours

An antelope moving with constant acceleration covers the distance 65.0 mm between two points in time 7.00 ss. Its speed as it passes the second point is 16.0 m/sm/s.

A ball is thrown straight down with an initial speed of 3.2 m/s from a height of 5.0 m. What is the position of the ball after 2.6 s, in meters? Use g = 10 m/s2.

K Tumblr ll 7:28 PM @ 1 0 36% Done 3 of 3 *21 From t=0 to t= 5.00 min, a man stands still, and from 1 = 5.00 min tot = 10.0 min, he walks briskly in a straight line at a constant speed of 2.20 m/s. What are (a) his average velocity Vvg and (b) his average acceleration a, in the time interval 2.00 min to 8.00 min? What are (c) v»y and (d) a, in the time interval 3.00 min to 9.00 min? (e) Sketch x versus t and v versus 1, and indicate how the answers to (a) through (d) can be obtained from the graphs. !!