An object will remain at rest or maintain constant, straight-line motion unless acted on by a force that is
a. inertial
b. balanced
c. unbalanced
d. along a straight line

The consumption of fossil fuels could be

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.