A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s

Question

Question

A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s. The average power he develops during the lift is

Answer 1

Answer #1

Power = M*g*H/t

answered by: eunice

Answer 2

Similar Homework Help Questions

A weightlifter exerts an upward force on a 1000-N barbell and holds it at a height...

A weightlifter exerts an upward force on a 1000-N barbell and holds it at a height of 1 meter for 2 seconds. Approximately how much power does the weightlifter exert on the barbell during this time?
Olympic weightlifter Zoe Smith lifts a 58 kg barbell over her head, 2.1 meters above the...

Olympic weightlifter Zoe Smith lifts a 58 kg barbell over her head, 2.1 meters above the ground in 0.6 sec. How much power must she generate to lift the barbell from the ground? a) 0 W b) 58 W c) 120 W d) 720 W e) 1990 W
A barbell has a 100.0-kg spherical mass of diameter 0.20 m on the left end and...

A barbell has a 100.0-kg spherical mass of diameter 0.20 m on the left end and a 40.0 kg spherical mass of diameter 0.40 m on the other end. The masses are separated by a very strong, uniform bar of length 1.5 m. A weightlifter wants to hold the barbell over his head with a single hand placed in such a location as to balance the weight and make it as easy as possible to lift the barbell. (a) If...

In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of...

In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 135 m. The average mass of each skier is 65 kg. What is the average power provided by the tension in the cable pulling the lift?
In 2.97 minutes, a ski lift raises four skiers at constant speed to a height of...

In 2.97 minutes, a ski lift raises four skiers at constant speed to a height of 131 m. The average mass of each skier is 69.6 kg. What is the average power provided by the tension in the cable pulling the lift?
In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of...

In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 115 m. The average mass of each skier is 65 kg. What is the average power provided by the tension in the cable pulling the lift? _____________ W

Brad tries out a weight-loss plan that involves repeatedly lifting a 42.9-kg barbell from the floor...

Brad tries out a weight-loss plan that involves repeatedly lifting a 42.9-kg barbell from the floor over his head to a height of 2.00 m. If he is able to complete three such lifts per minute, how long will it take for him to lose 0.50 kg of fat? “Burning” 1 g of fat supplies 37.1 kJ to the body; of this, 10.0% can be used by the muscles to lift the barbell. (Ignore the fat “burned” while he lowers...
A crane lifts a 200 kg block a height of 10 m in 18 seconds. What...

A crane lifts a 200 kg block a height of 10 m in 18 seconds. What is this crane’s average power output? (Round to nearest tenth)
Part A The power expended for a barbell raised 2.0 m in 2 s is O...

Part A The power expended for a barbell raised 2.0 m in 2 s is O 8W O 1 W O4W O not enough information Submit Request Answer Provide Feedback

9. A crane is to lift 2000 kg of material to a height of 150 m...

9. A crane is to lift 2000 kg of material to a height of 150 m in 1 min at a uniform rate. What electric power is required to drive the crane motor if 35 percent of the electric power is converted to mechanical power? (is it reasonable to neglect the kinetic energy in this process?)