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Use F = ma a = v-u/t = 200-0/4 = 50 cm/s² F = 500 × 50 = 25,000 dyne.
A block of mass 500 g is at rest on a horizontal table. What steady force is required to give the block a velocity of 200 cms⁻¹ in 4 s?
Use F = ma a = v-u/t = 200-0/4 = 50 cm/s² F = 500 × 50 = 25,000 dyne.
Use F = ma
See lessa = v-u/t = 200-0/4 = 50 cm/s²
F = 500 × 50 = 25,000 dyne.