If the mass of a cart is quickly loaded to have twice the mass while a propelling force remains constant, the cart's acceleration
A)quadruples.
B)doubles.
C)stays the same.
D)halves.
E)none of these

Question

Quizplus · Accepted Answer

According to Newton's second law of motion, the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. If the mass of the cart is doubled while the force remains constant, the acceleration will be halved. This can be seen mathematically as a = F/m, where a is acceleration, F is force, and m is the mass of the cart. When m is doubled, a is halved, so the correct answer is D.

If the Mass of a Cart Is Quickly Loaded to Have