Acar has a forward acceleration. how would the acceleration of the car be different if it had more mass

Acceleration would decrease

Explanation:

According to Newton's second law of motion, acceleration (a) of a body ( having mass m) is directly proportional to the force (F) applied to it.

F = ma

For the same force applied, if the mass is increased, the acceleration would decrease.

For F = constant, if m increases, acceleration decreases to keep the force constant.

b.a device that inputs heat into a cool object