How much work did the mat do on the high jumper

Reference no: EM13490041

A 65 kg high jumper starts his push-off phase with his center of mass .45 m above groung and velocity of 0 m/s. At the end of his push-off his center of mass is .9 m above ground. The average GRF during push-off was 3000 N. He lands on a 1 m tall mat that depresses .5 m when he comes to a stop.

a. How much work did the mat do on the high jumper?

b. What is the average force the mat exerted on the high jumper?

Reference no: EM13490041

Questions Cloud

What is biodiversity : What is biodiversity

Explain moles of oxygen are produced at room temperature : How many moles of oxygen are produced at room temperature given the following: Volume of oxygen at room temp = 48.3 mL (0.0483 L) Room temp. = 295.35K Barometric pressure = 775.7 mm Hg (1.0207 atm) Mass of oxygen produced at room temp = 0.0532g

How a broadband system operates : Define and describe broadband and how a broadband system operates. 2) Discuss the difference between wired and wireless broadband and the technologies that are used to implement/deploy each of these two broad classes of broadband technology. ..

Define the direction of ion movement through the salt bridge : Sketch galvanic cells based on the following overall reactions. Show the direction of electron flow, the direction of ion movement through the salt bridge, and identify the cathode and anode

How much work did the mat do on the high jumper : A 65 kg high jumper starts his push-off phase with his center of mass .45 m above groung and velocity of 0 m/s. How much work did the mat do on the high jumper

The most significant aspects of a leader job : Creating an organizational culture is one of the most significant aspects of a leader's job. Recommend three methods you would use to emphasize service and quality as part of your organization's culture and how the message would be communicate ..

Whats the gain or loss on the redemption : Face rate is 10 % and maeket rate 12%. What's the carrying value after the first interest payment is made on June 30? Also, if the bonds are retired on July 4, at a call price of 105, what's the gain or loss on the redemption?

What is the magnitude of the force the pin exerts on beam : A uniform beam having a mass of 60 kg and a length of 2.8 m is held in place at its lower end by a pin. What is the magnitude of the force the pin exerts on the beam

Calculate the variances for the year : Calculate the variances for the year ended December 31,2011, identify the person/department to get additional information from regarding the variances and lastly suggest one plausible explanation for each variance.

User Account

All Pages