Question

imagine that a blue car is traveling 40 miles per hour with a sack of groceries sitting in the front seat. a red car suddenly pulls out in front of the blue car. to avoid an accident, the blue car slams on its brakes to slow the car to a speed of 0 miles per hour. meanwhile, the sack of groceries flies off of the seat and spills onto the floor. which one of newtons law explains the motion of the sack of groceries? explain why. since the groceries were not secure they keep moving. the groceries have less mass than the car. the car put an equal and opposite force on the groceries.

Explanation:

Newton's First Law, also known as the law of inertia, states that an object in motion will stay in motion with a constant velocity unless acted upon by an external force. The sack of groceries was in motion with the car. When the car brakes, no force is immediately applied to the groceries to stop them, so they continue moving forward due to inertia.

Answer:

Newton's First Law; Since the groceries were not secure they keep moving