ball of mass 10 g is initially moving with a velocity of 50 m sl. On applying a constant force on ball for 2.0 s, it acquires a velocity of 70 ms-1. Calculate: (i) the initial momentum of ball (ii) the final momentum of ball?
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Answer:
= 50kg x 10m/s² . = 500 kg m/s²
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Answer:
F = ? (a) Pi = m•u . = (10•50)kg m/s . = 500 kg m/s (b) Pf = m•v . = (10•70) kg m/
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