A bus moving with a velocity of 60 m/s comes to stop after applying brakes. If it takes 3 seconds to stop then calculate the acceleration it produces.
Answers
Answered by
4
Answer:
-20 m/s^2
Explanation:
Given:
initial velocity = 60
final velocity = 0
time = 3s
Sol: a = v-u ÷ t
a = 0 - 60 ÷ 3
= -20m/s^2
Note: The negative sign indicates negative acceleration or retardation or deceleration.
Answered by
0
Answer:
- Retardation, a=−25cm/s
- 2
- =−0.25cm/s
- 2
- ⇒t=20s
- ⇒v=0m/s
- Now, v=u+at
- ⇒0=u+(−0.2s)(20)
- ⇒u=5m/s=500cm/s
Explanation:
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