Question

A car of mass 500 kg starts from rest and is acted upon by a forward force of 200 N due to engine and regarding force of 50N. Calculate the velocity after 5 seconds.

Answer 1

m=500kg
F= force= 200N+50N= 250N
u=0as it has been start from rest

we know ,F=ma
250/500=a
a=1/2m/s^2
$a = \frac{v - u}{t}$
v-0=1/2×5
v=2.5m/s

ANS= 2.5
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Answer 2

Answer:

Jisne answer Diya hai wo Galat hai retarding force substraction mein jaata hai not addition btw the answer is 1.5m/s2