Question

Lucy boards a crowded bus as it sits in the station. There are no available seats, so Lucy stands in the center aisle next to a support pole. As the bus starts moving forward and picks up speed, Lucy holds the pole tightly to avoid falling over backward. While the bus is speeding up, what is the direction of the total force (if any) on Lucy?a. Is it forward b. Baclwards c. The total force is zero?

Answer 1

The acceleration of the bus is forward, and said acceleration is transmitted directly to Lucy, so the direction of the Force (We gather that force is equal to mass by acceleration) will be forward as well. Lucy's immediate action will be to fall back because she tries to resist this movement.

Therefore the correct answer is A.