A 50-kg object moving at a constant speed of 2 m/s to the right. The acceleration is . a 25 m/s^2
b 100 m/s^2
c 10 m/s^2
d 0 m/s^2

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

The discovery of the electron as a subatomic particle was a result of

Debris produced by mining is called