Two carts A and B of mass 10 kg each are placed on a horizontal track..They are joined tightly by a light but strong rope C..A man holds a cart B and pulls it towards the right with a force of 70 N...The total force of friction by the track and air on each cart is acting towards the left..Find the acceleration of th carts
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Total force on cart a and b=70+15=85N
their mass=10kg
F=m*a
85=10a
a=85/10
a=8.5m/s square.
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