Which would most likely cause acceleration? check all that apply. flat road, wind, water movement, hill, or stop light.

answer: wind, water movement, hill and stop light.

acceleration is rate of change of velocity. it is a vector quantity. it means it has both magnitude as well as direction. it depends upon velocity. so, whenever there is change in speed or direction of motion, acceleration is caused.

on a flat road, it is not likely for occurrence of acceleration as there would be no turns, no change in direction. so, unless driver changes speed or reverses the vehicle, the car would not accelerate.

in case of wind, water movement, the vehicle is likely to accelerate as most likely there would be change in speed of the vehicle.

hills have curved roads, so direction changes every now and then causing acceleration of the vehicle.

as the vehicle approaches stop light, it is most likely to halt the vehicle by decreasing the speed and causing the vehicle to decelerate and again on green signal accelerate the vehicle to move ahead.

therefore, wind, water movement, hill and stop light most likely cause acceleration.

your answer would be fusion

multiply 2kg by latent heat of vap