A HotwheelsTM car starts from rest and rolls down a 1.68 m long ramp in a time of 2.40 s. The magnitude of the average acceleration of the car is m/s², 1) 0.814 2) 0.647 3) 0.358

The (c) answer is incorrect, the height the flea gets should be 0.051 m, not 4.95 x 10 ^ -6. Because its initial velocity after accelerating is 1 m / s, and the flea travels approximately 0.051 m before its velocity decreases to 0. Adding 0.051 m to 0.0005 m should get 0.051 m after rounding. Please check and edit the answer again.

QUESTION 2 A ball is thrown straight up in the air. When it reaches a height that is n times smaller than the maximum height it can reach, its speed is v. Calculate the maximum height, in meters. n = 3.9 v = 16.8 m/s to saue all answers.

A car traveling 89 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.81 m. a) What was the average acceleration of the driver during the collision? b) Express the answer in terms of g.

A ball falls from height of 12 meters. Each time that the ball hits the ground the ball bounces of original height. Calculate the full distance run by the ball if it stops after six 6 bounces. ○ 50 m 96 m о о 48 m ○ 84 m

A particle starts from rest and accelerates as shown in the figure below. az (m/s²) 1 15 20 (s) 7 " 5 10 -1 -2 -3 (a) Determine the particle's speed at t = 10.0 s. m/s Determine the particle's speed at t = 20.0 s? m/s (b) Determine the distance traveled in the first 20.0 s. (Enter your answer to one decimal places.)

A ball is thrown into a wall at a speed of 20 m/s and bounces off going 10 m/s in the opposite direction 0.2s after hitting the wall. What is the acceleration of the ball?

The NEXT morning, you wake up in a strange room yet again, and this time you drop a ball from a height of 1.54 m above the floor. The ball hits the floor 0.392 s after your drop it. You guess that you must have been taken to an alien planet with gravity different from Earth s. What is this planet s g (that is, the magnitude of the acceleration due to gravity on this planet)?     10.0 m/s^2     15.0 m/s^2     30.0 m/s^2     20.0 m/s^2

Cities A and B are connected by a straight road of total length 200 miles.Two cars depart cities A and B at the same time, moving towards each other. The A-car travels at 60 miles per hour, and the B-car at 40 mph. At the same time, a fly starts off from the front bumper of the A-car flying at 100 mph. It flies towards city B until it touches the bumper of the B-car, and then flies back, touches the A-car, flies back, etc, until the cars collide and the fly is squashed. The standard trick question is - what is the total distance traveled by the fly? At first sight one would think that the problem should be solved by the series summation, but that’s not necessary - the cars meet after 2 hours, and during that time the fly traveling at 100 mph covers exactly 200 miles. Now that you know the answer, solve this problem using the series summation [1].

A person jogs three complete laps around a 200 m track in a total time of 11 minutes. What is the jogger's average velocity in m/s. 0 m/s 3.7 m/s 21.4 m/s 37 0.91