A motorcycle is gradually slowing down. If the force generated by the motorcycle to move it forward is 4,000 N, what can be said about the force opposing the motorcycle’s motion?

A. It is greater than 4,000 N.
B. It is zero.
C. It is exactly 4,000 N.
D. It is less than 4,000 N and greater than zero.

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

What are atoms of the same element with varying number of neutrons