Calculate the work done by a car if a car weighing 1200 kg started from rest and covers a distance of 40 m in 5 seconds.
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Answer:
s=ut+1/2at2
40=1/2a(5)^2
a=80/25
a=3.2m/s^2
f=ma
=1200*3.2
f= 3840N
work=fs
= 3840*40
w=153600J
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