A body of mass 250 g moves under the action of a force, newtons. Given that the body starts from rest at the origin, and , where and are perpendicular unit vectors, find the displacement in terms of .
A body of mass 7 kg moves under the action of three forces, , , and . Given that the displacement of the particle at time seconds is , determine the values of and .
A body of mass 1 kg was moving in a straight line with a velocity , where and are two perpendicular unit vectors. The force acted on the body for 8 seconds. Find the body’s speed after the action of this force.