Author Question: A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, ... (Read 72 times)

OSWALD · **on:** Jul 29, 2018

A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, causing the car to slow down with a uniform acceleration of magnitude 3.50 m/s2.

How far does the car travel after the driver put on the brakes until it comes to a stop? A) 4.57 m
B) 9.14 m
C) 112 m
D) 146 m
E) 292 m

Question 2

A girl lifts a ball by means of a string attached to the ball. The string exerts a 30 newton force on the ball. The ball weighs 20 newtons and has a mass of 2 kilograms. The acceleration of the ball is

A) zero. B) 25 m/s2. C) 5 m/s2. D) 15 m/s2. E) 10 m/s2.