4. A small rocket with a mass of 2000 g (hint: grams) accelerates at 8.3 m/s/s as it launches into the sky. How much force is ac
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Answer:
They are able to balance torques due to gravity.
Explanation:
When two friends of different masses will balance themselves on see saw then at equilibrium position the see saw will remain horizontal
This condition will be torque equilibrium position where the see saw will not rotate
Here we can say
here we know that force is due to weight of two friends
and their positions are different with respect to the lever about which see saw is rotating
since both friends are of different weight so they will balance themselves are different positions as per above equation
We will have the following:
So, the heat to add is 3611.52 Joules.