If an object is placed on a truck, why does it slide backward when it accelerates forward?

A: The truck is pushing it back

B: The object doesn’t like moving with the truck

C: The object has inertia

Correct answer: C. There are NO forces that push the object backwards. Rather the object has inertia, which is the tendency to resist a change in motion. Because the object was initially at rest, it wants to stay at rest. When the truck starts to move forward, the box just stays stationary, giving it the illusion that it's moving backwards while the truck moves forward.

D: There is an unknown force pushing the truck and object in opposite directions

If an object is placed on a truck, why does it slide backward when it accelerates forward?

If an object is placed on a truck, why does it slide backward when it accelerates forward?

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