To calculate the force of gravity on the rock, we use the formula:
Force of gravity = mass x gravity
Given:
Mass = 150 kg
Gravity = 9.81 m/s^2
Force of gravity = 150 kg x 9.81 m/s^2
Force of gravity = 1471.5 N
Now, to calculate the normal force of the ground on the rock, we need to consider the vertical forces acting on the rock.
Vertical forces:
- Force of gravity acting downwards = 1471.5 N
- Normal force acting upwards (opposing force of gravity)
Since the rock is on a horizontal surface, the normal force is equal in magnitude but opposite in direction to the force of gravity. Therefore, the normal force is also 1471.5 N.
A. 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