A body with variable mass moves in a straight line. At time seconds, its mass is given by , and its displacement from a fixed point on the line is given by . Calculate the change in the body’s momentum between and .
A body of variable mass is moving along a fixed straight line. Its mass at time is given by the relation and its displacement is given by the relation , where is a unit vector parallel to the direction of its motion. Determine the body’s momentum and the force that is acting on it .
Determine the mass of a body whose momentum is 37 kg⋅m/s, given that its displacement vector is given by the relation , where is measured in meters and in seconds.