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Author Question: A car starts from rest and accelerates uniformly at 3 m/s2. A second car starts from rest 6 s later ... (Read 25 times)

Chloeellawright

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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?


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tsternbergh47

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Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

(a) 25.5 m/s
(b) 27.4 m


Chloeellawright

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Reply 2 on: Jul 27, 2018
Gracias!

DylanD1323

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Reply 3 on: Yesterday
Wow, this really help

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