How could you decrease the total energy of a system consisting of a jar full of water? O A. Heat the jar in a microwave oven. O
2 answers:
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Answer:
Part a)
Part b)
Part c)
Part d)
Explanation:
Part a)
For hanger we know that it will have tension force upwards while it has downwards its weight so we will have
so we have
Part b)
now for car that is rolling on the floor the net force is given as
Part c)
now we know that the cart and the hanger both are connected to each other
so they must have same acceleration
so we will have
Part d)
now we know that
M = 2.40 kg
m = 0.50 kg
so we will have