A constant redarding force of 50N is applied to a body of mass 20kg moving initially with a speed of 15m/sec.how does the body take to atop
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ANSWER:
6 seconds
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BRAINLY SOLUTION:
Retardation (a) = F/m
= 50/20
= 2.5 m/s^2
Since, it is retardation then acceleration become negative.
Therefore,
a= -2.5 m/s^2.
Now, use v = u + at
0 = 15 + (-2.5)t
t = 15/2.5
t = 6 seconds
It takes 6 seconds for body to stop.
_____________________________
6 seconds
____________________________
BRAINLY SOLUTION:
Retardation (a) = F/m
= 50/20
= 2.5 m/s^2
Since, it is retardation then acceleration become negative.
Therefore,
a= -2.5 m/s^2.
Now, use v = u + at
0 = 15 + (-2.5)t
t = 15/2.5
t = 6 seconds
It takes 6 seconds for body to stop.
_____________________________
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