A 1 kg ball is thrown upwards with a force of 10 N. What is the net force acting

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Question: A 1 kg ball is thrown upwards with a force of 10 N. What is the net force acting on the ball at the peak of its motion?

Options:

Correct Answer: 0 N

Solution:

At the peak, the only force acting on the ball is its weight (10 N down), so the net force is 0 N.

A 1 kg ball is thrown upwards with a force of 10 N. What is the net force acting on the ball at the peak of its motion?

A 1 kg ball is thrown upwards with a force of 10 N. What is the net force acting on the ball at the peak of its motion?

Step 1: Understand that the ball is thrown upwards with a force of 10 N.
Step 2: Recognize that the ball has a weight due to gravity, which is also a force acting downwards.
Step 3: Calculate the weight of the ball. Since the mass of the ball is 1 kg, the weight (force due to gravity) is 1 kg * 9.8 m/s² = 9.8 N down.
Step 4: At the peak of its motion, the upward force (10 N) has been used to overcome gravity, and the ball is momentarily at rest.
Step 5: At the peak, the only force acting on the ball is its weight (9.8 N down).
Step 6: Since the ball is not accelerating at the peak, the net force is the total force acting on it, which is 0 N.

Net Force – The net force is the vector sum of all forces acting on an object. At the peak of its motion, the only force acting on the ball is its weight.
Weight – Weight is the force due to gravity acting on an object, calculated as mass times the acceleration due to gravity (9.8 m/s²).
Equilibrium – At the peak of its motion, the ball momentarily comes to rest, indicating that the net force is zero.