Answer to Question #289361 in Physics for Stephany

Question

1. A 55 kg gymmast suspends herself from the lower end of a hanging rope of negligible mass. The upper end of the rope is attached to the gymnasium ceiling (a) What is the gymnast weight? (b) What is the tension at the top of the rope?

2. A man pushed a 1,000 kg car to the +x direction. If the applied force is 5000N, what is the acceleration of the car if the coefficient of the friction force is 0.57

Answer 1

1. (a) $W=mg=539$ N

(b) $T=W=539$ N.

2. $a=F/m-\mu g=-0.586$ m/s²