A body of mass 'M' is moving with a uniform s | vedclass

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(D) Power is defined as the dot product of force and velocity,given by $P = \vec{F} \cdot \vec{v}$.Since the body is moving with a uniform speed '$v$'

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Zero

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(D) Power is defined as the dot product of force and velocity,given by $P = \vec{F} \cdot \vec{v}$.Since the body is moving with a uniform speed '$v$',the net force acting on the body must be zero according to Newton's first law of motion.From the figure,the forces $F_1$ and $F_2$ act in opposite directions. Therefore,the net force $F_{net} = F_1 - F_2 = 0$.The net power $P_{net}$ is the power delivered by the net force:$P_{net} = F_{net} \cdot v = (F_1 - F_2) \cdot v$.Since $F_1 = F_2$ for uniform motion,$P_{net} = 0 \cdot v = 0$.

$A$ body of mass '$M$' is moving with a uniform speed of '$v$' on a frictionless horizontal surface under the influence of two forces $F_1$ and $F_2$ as shown in the figure. The net power of the system is

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