To find the force of gravity on the rock, we can use the formula:
Force of gravity = mass x acceleration due to gravity
Given that the mass of the rock is 150 kg and the acceleration due to gravity is 9.8 m/s^2, the force of gravity on the rock would be:
Force of gravity = 150 kg x 9.8 m/s^2
Force of gravity = 1470 N
Next, to find the normal force of the ground on the rock, we can consider the forces acting on the rock in the vertical direction:
Upward force:
- Force of gravity = 1470 N
Downward force:
- Force applied by the tractor = 1200 N
Net force in the vertical direction:
Net force = Force of gravity - Force applied by the tractor
Net force = 1470 N - 1200 N
Net force = 270 N
Since we know that the normal force of the ground on the rock is equal in magnitude and opposite in direction to the net force in the vertical direction, the normal force of the ground on the rock would be:
Normal force = 270 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].
• Calculate the force of gravity on the rock and the normal force of the ground on the rock.
1 answer