Author Question: A car starts from rest and accelerates uniformly at 3 m/s2. A second car starts from rest 6 s later ... (Read 40 times)

Chloeellawright · **on:** Jul 27, 2018

A car starts from rest and accelerates uniformly at 3 m/s2. A second car starts from rest 6 s later at the same point and accelerates uniformly at 5 m/s2. How long does it take the second car to overtake the first car?

A) 24.0 s
B) 12.2 s
C) 35.0 s
D) 18.9 s
E) 22.7 s

Question 2

A girl throws a rock horizontally with a speed of 12.0 m/s from a bridge. It falls 2.28 s before reaching the water below.

(a) How high is the bridge from the water below?
(b) How far horizontally does the rock travel before striking the water?