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Answer:
5N
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Answer:
ans is (A)
Explanation:
from the given graph we can say,
V= 0 m/s
u= 80 m/s
t= 8 s
m= 50 g
we know that F=ma
now m= 50g = 1/20Kg
therefore we need to find acceleration
a= v-u/t
a= 0-80/8
a= -80/8
a= -10m/s^2
now F equals,
F=ma
F=10*1/20
F= 1/2 N= 0.5 N
therefore ans is a) 0.5 N
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