Question

19. A block of mass 2kg is lying on a frictionless horizontal plane. A time dependent force
tis time) is working on it. The time when block will have an acceleration of 10m/s² is
plane. A time dependent force F = '4t' Newton (wher
(a) 2 sec
(c) 4 sec
(b) 3 sec
(d) 5 sec

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Answer 1

Answer:

F=m×a

4t=2kg×10ms^-2

4t=20kg ms^-2

t=20÷4=5 second.