To calculate the force of gravity on the rock, we need to first determine the net force acting on the rock in the vertical direction. The only force acting in the vertical direction is the force of gravity, which is equal to the weight of the rock.
The net force in the vertical direction can be calculated using Newton's second law:
∑F = m * a
Where:
∑F = net force in the vertical direction
m = mass of the rock = 150 kg
a = acceleration due to gravity = 9.8 m/s^2
Since the rock is not accelerating in the vertical direction (i.e., it's not moving up or down), the net force in the vertical direction is zero. Therefore, the force of gravity on the rock is equal in magnitude but opposite in direction to the force pulling the rock to the right.
Therefore, the force of gravity on the rock is 150 kg * 9.8 m/s^2 = 1470 N.
Regarding the acceleration of 9.8 m/s^2, this value is the standard acceleration due to gravity on the surface of the Earth. It is commonly used in physics calculations involving objects near the Earth's surface.
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
how did you get 9.8 for the acceleration
1 answer