Question

A car of weight 2000N moving at Velocity of 20m/s in a hilly road .Then find out potential energy at point A B C . Whose height are 50mt , 75mt , 120 m respectively . consider car is moving uniform speed ? g = 10 m/ s- 1
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Answer 1

Answer:

potential energy is mgh

m=2000

g=10

h1=50

h2=75

h3=120

P1=20000(50)

1000000J

1000kJ

P2=20000(75)

1500000J

1500kJ

P3=20000(120)

2400000J

2400kJ