a particle of mass 0.5 kg is subjected to a force which varies with distance as shown in graph if the spedd of the particle atx=0 is 4m/s then its speed at x=8m is
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Answer:
16m/s
hint .
area under graph is equal to the change in kinetic energy
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Answer:
The speed of the particle at 8 m is 16 m/s.
Explanation:
Given that,
Mass of particle = 0.5 kg
Speed of the particle at x = 0 is 4 m/s.
We need to calculate the speed at x = 8 m
Area under the curve x = 0 to x = 8.
It is a shape of trapezium.
It is force vs displacement graph
Therefore, are under the curve gives work done by a particle
Work done = change in kinetic energy
Area of trapezium = change in kinetic energy
Put the value into the formula
Hence, The speed of the particle at 8 m is 16 m/s.
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