Question

How much force is used if ms Johnston can bench press 123 kg in 3 seconds, using 2500 j of work? The total distance from the barbell to ms Johnston to the original starting position is 1.2m.

Answer 1

The force applied would be 2083.3N

Explanation:

Given:

Mass, m = 123kg

Time, t = 3 seconds

Work, W = 2500J

Distance, x = 1.2m

Force, F = ?

We know:

Work = Force X distance

$2500 = F X 1.2m\\\\F = \frac{2500}{1.2} \\\\F = 2083.3N$

Therefore, the force applied would be 2083.3N