A high school athlete is in the weight room training for wrestling season. He is trying to bench press a bar loaded with 100 kg. How much force must he exert to lift the loaded bar and overcome the force of gravity?

Question

Remember that a= 9.8 m/s 2
.(1 point)
Responses

980 N
980 N

109.8 N
109.8 N

10.2 N
10.2 N

9800 N

Answer 1

To determine the force the athlete must exert to lift a bar loaded with 100 kg, we can use the formula for weight:

\[ \text{Weight} (F) = \text{mass} (m) \times \text{gravity} (g) \]

Given:

• Mass (\(m\)) = 100 kg
• Acceleration due to gravity (\(g\)) = 9.8 m/s²

Now, we can calculate the force:

\[ F = 100 , \text{kg} \times 9.8 , \text{m/s}² = 980 , \text{N} \]

Therefore, the athlete must exert a force of 980 N to lift the loaded bar and overcome the force of gravity.

The correct response is: 980 N