A constant retarding force of 50n is applied to a body of mass 20kg moving in initially with a speed of 15m/s . How long does the body take to stop.
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Answer:
0.3sec
Explanation:
given that the body is in retardation so the acceleration will be negative
a=-50N
u=15m/s
v=0
a=(v-u)/t
-50=0-15/t
from here
t=0.3sec
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