The normal force is the force exerted by a surface to support the weight of an object resting on it. In this case, the normal force is equal in magnitude and opposite in direction to the force of gravity acting on the rock.
To find the normal force, we first need to calculate the net force acting on the rock in the vertical direction. The net force in the vertical direction can be calculated as follows:
Force of gravity = mass x acceleration due to gravity
Force of gravity = 150 kg x 9.8 m/s^2
Force of gravity = 1470 N
Net force in the vertical direction = Force of gravity
Net force in the vertical direction = 1470 N
Since the rock is not accelerating in the vertical direction, the normal force must be equal in magnitude and opposite in direction to the net force in the vertical direction. Therefore, the normal force acting on the rock is 1470 N.
A tractor pulls a 150 kg rock to the right with a force of 1200 N against a force of friction of 750 N [left].
what is the normal force?
1 answer