Laws Of Motion Question 261

Question: The linear momentum p of a body moving in one dimension varies with time according to the equation p=a+bt2 , where a and b are positive constants. The net force acting on the body is [MP PMT 1993]

Options:

A) Proportional to t2

B) A constant

C) Proportional to t

D) Inversely proportional to t

Show Answer

Answer:

Correct Answer: C

Solution:

F=dpdt = ddt(a+bt2)=2bt

i.e. Ft



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