Question

calculate the time needed for the net force of 5 Newton to change the velocity of a 10 kg mass by 2 metre per second​

Answer 1

Answer:

t=4sec

F=ma

5=10×v-u/t

5/10=v-u/t

let u be x and then v is x+2

Explanation:

1/2=x+2-x/t

1/2=2/t

t=4seconds

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Answer 2

Answer:

F = 5N, m = 10kg.

v = 2m/s , u = 0m/s

Force = Mass × acceleration

5 = 10 × (v - u/t )

5 = 10 × (2 - 0/t )

5t = 10 × 2

5t = 20

t = 20/5

t = 4s

Time needed is 4second