Which of the following experiences balanced force- a. ball dropping vertically. b. car accelerating uniformly from rest. c. a trolley moving at a constant velocity down a slope. d. a plane flying in a circle with constant speed.
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When there is an increase the steepness of the slope, there will be an increase the speed of a ball rolling down the ramp. This is observed as, the force of gravity points straight down, but a ball rolling down a ramp does not go straight down, it follows the ramp.
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