One of the best ways to avoid injury while riding a bike

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero