At t=0, an object of mass m is at rest at x=0 on a horizontal, frictionless surface. A horizontal force Fx=F0 (1−t/T), which dec
reases from F0 at t=0 to zero at t=T, is exerted on the object.\ Part A
Find an expression for the object's velocity at time T.
Express your answer in terms of the variables F0, m, and T.
Part B
Find an expression for the object's position at time T.
Express your answer in terms of the variables F0, m, and T.
He can throw the hammer in the direction opposite to the direction he wants to travel in. The hammer will exert an equal and opposite force on him, as per Newton's third law, and this will help him move towards the space station.
