Question

A truck of mass M is moved under a force F. If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?

Answer 1

F=ma

According to the question, body of same mass is loaded.

Total Mass = m+m=2m

Force =

2

1

F

F=ma

⇒

2

1

F=2ma

∴a=

4m

F

So, acceleration becomes 1/4 times

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