Question

A 300 g mass has a velocity of (3i+4j) m/s at a certain instant what is its K.E

Answer 1

KE=1/2mv²
mass=0.3kg
velocity,=5
KE=1/2×0.3×5×5=3.75J

Answer 2

Find velocity and use formula..

KE= 1/2 m v^2

I hope it helps..

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