Answer to Question #183542 in Classical Mechanics for Jethro

Question

A force given as 2F - t - 4 = 0 acts horizontally on an object from (2,0) to (5,0). Find the impulse of the force

Answer 1

Answer

Impulse can be given as

$J=\int Fdt$

$J=\int^5_2(\frac{t}{2}-2) dt\\J=[\frac{t^2}{4}-2t]^5_2\\J=-0.75N-s$