Answer to Question #170188 in Physics for Abby Porter

Question

Please help, hopefully showing the full steps. I really need help!

1. A football player pushes a tackling dummy forwards at a constant 0.85 m/s for 11 m using 7150 J of energy. The tackling dummy has a mass of 120 kg.

a) Find the force the football player exerts.

Answer 1

The force the football player exerts

$$F=\frac{W}{s}\\F=\frac{7150}{11}=650\ N$$