A10 kg mass starts from rest at the top of a frictionless incline and slides down the ramp. the ramp makes an angle of 0=30" . take the positive x axis to be down the ramp. what is the acceleration of the mass and it moves down the ramp? m a) a 0 -4.9 m b) a=-4.9- m s m c) a+4.9- a, 0 2. 2 d) none of the above.

The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ? t ? 8. (a) when is the position function decreasing? (round you

Which situation will produce the greatest change of momentum

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy. work depends on the square of the change in potential energy. work is equal to the negative of the change in kinetic energy. work is equal to the square of the change in kinetic energy