A car of 600kg mass was moving 0.2 m/s^2 accelaration. the car then hits a pickup of 400kg after 60 sec. After collision they move with a velocity of 7.2 m/s^1
a. Find the applied force of first car
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Answer:
Explanation:
Given,
m1 = 600kg
a = 2m/s^2
m2 = 400kg
u2 = 0m/s ( since truck was at rest )
Using ,
we get 600(u1) + 0 = 4320 + 2880
⇒ u1 = (7200)/600
= 12m/s
v1 = u1 + at = 12 + 12 = 24m/s
We can use the formula,
⇒ {600(24-12)}/60
= 120kgm/s^2
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