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A 140-kg horizontal beam is supported at each end. A
Chapter 3, Problem 8P(choose chapter or problem)
Problem 8P
A 140-kg horizontal beam is supported at each end. A 320-kg piano rests a quarter of the way from one end. What is the vertical force on each of the supports?
Questions & Answers
QUESTION:
Problem 8P
A 140-kg horizontal beam is supported at each end. A 320-kg piano rests a quarter of the way from one end. What is the vertical force on each of the supports?
ANSWER:
SolutionStep1 of 4The impulse is large force acts on a body in short interval of timeWe know thatF p t pF =k t where kis proportional constant its value is 1 mvF = t because linear momentum p=mvF = mt here m is constantF t=mvF t=p where p=p -f iStep2 of 4J = p fp i J =mv- mu The graph is plotted force versus time, the area under the graph gives impulse\n Step 3 of 4 Given Mass of the tennis ball=m=60g=0.06 kg Initial velocity of the ball=u=32 m/s Final velocity of the bal