I need help please! A 125 kg block of wood falls off of the back of a truck that is traveling at 26.5 m/s. It lands flat on the road and skids to a stop in 122 m. Assuming acceleration is constant, what is the coefficient of kinetic friction?

What object a collides with object b and bounces back its final momentum is?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground