A body of mass 8kg moving with a speed of 30ms-... - WAEC Physics 2004 Question
A body of mass 8kg moving with a speed of 30ms-1 is brought to rest in 2.5s by a constant retarding force. Calculate the magnitude of the force
A
240N
B
96N
C
20N
D
9N
correct option: b
F = ma = \(\frac{mv}{t} = \frac{8 \times 30}{2.5} = 96\)
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