Draw a sketch and also a FBD to identify the relevant forces doing work. A football player pushes a tackling dummy forwards at a constant 0.85 m/s for 11m using 7150 J of energy. The tackling dummy has a mass of 120 kg. a) Find the force of the football player exerts. b) Draw a FBD of the dummy. Be sure to include friction in the diagram. What is the value of this friction force? c) How many joules of work has been done by friction? d) Is the mass necessary for this question? Explain.
Draw a sketch and also a FBD to identify the relevant forces doing work. A football player pushes a tackling dummy forwards at a constant 0.85 m/s for 11m using 7150 J of energy. The tackling dummy has a mass of 120 kg. a) Find the force of the football player exerts. b) Draw a FBD of the dummy. Be sure to include friction in the diagram. What is the value of this friction force? c) How many joules of work has been done by friction? d) Is the mass necessary for this question? Explain.
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Draw a sketch and also a FBD to identify the relevant forces doing work.
A football player pushes a tackling dummy forwards at a constant 0.85 m/s for 11m using 7150 J of energy. The tackling dummy has a mass of 120 kg.
a) Find the force of the football player exerts.
b) Draw a FBD of the dummy. Be sure to include friction in the diagram. What is the value of this friction force?
c) How many joules of work has been done by friction?
d) Is the mass necessary for this question? Explain.
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