Question

In bench pressing a 100kg a weighlifter applies a force of 1040N how large is the upward acceleration of the weights during the lift

Answer 1

The upward acceleration of the weights during the bench press is 10.4m/s².

Step-by-step explanation:

To find the upward acceleration of the weights during the bench press, we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. In this case, the net force applied is 1040N and the mass of the weights is 100kg.

First, we calculate the net force acting on the weights:

Fnet = m * a

1040N = 100kg * a

Next, we rearrange the equation to solve for the acceleration:

a = Fnet / m

a = 1040N / 100kg

a = 10.4m/s²

Therefore, the upward acceleration of the weights during the bench press is 10.4m/s².