CWatters said:What does Newtons third law say about people exerting a force on a cart?
The force needed to pull a 400kg cart up a hill can be calculated using the formula F = mgh, where F is the force in newtons, m is the mass of the cart in kilograms, g is the acceleration due to gravity (9.8 m/s^2), and h is the height of the hill in meters. Simply plug in the values and solve for F to determine the force needed.
The magnitude of the force required to pull a 400kg cart up a hill is the same as the force calculated in the previous question. It is the amount of force needed to overcome the combined effects of gravity and friction to move the cart up the hill.
The slope of the hill has a direct impact on the force needed to pull a 400kg cart. The steeper the slope, the greater the force needed to overcome the effects of gravity and friction. This is because the steeper the slope, the greater the height that the cart needs to be pulled up, resulting in a larger value for h in the force equation.
No, the units for mass must be in kilograms and the units for height must be in meters in order for the force equation to be accurate. Using different units may result in an incorrect calculation of the force needed.
Yes, there is a minimum force required to pull a 400kg cart up a hill. This minimum force is equal to the weight of the cart (m*g) and is needed to overcome the force of gravity pulling the cart down the hill. Any additional force is needed to overcome the effects of friction and move the cart up the hill.