Question

A firefighter, whose mass (including clothing and equipment) is m=97 kg, hears the alarm and slides down the pole with a constant downward acceleration of magnitude a=3.55 m/s². What is the force of gravity acting on the firefighter?

a. 0 N
b. 97 N
c. 342.35 N
d. 679.35 N

Answer 1

The force of gravity acting on the firefighter is 961.6 N.

Step-by-step explanation:

The force of gravity acting on the firefighter can be calculated using the formula F = mg, where F is the force of gravity, m is the mass of the firefighter, and g is the acceleration due to gravity.

In this case, the mass of the firefighter, including clothing and equipment, is given as 97 kg. The acceleration due to gravity is approximately 9.8 m/s².

Therefore, the force of gravity acting on the firefighter is:

F = (mass)(acceleration due to gravity) = (97 kg)(9.8 m/s²) = 961.6 N.

So the correct option is d. 961.6 N.