Question

A force of 5N changes the velocity of body from 10m/s to 20m/s in 6s. the force required to bring the same changes in 1.5s is​

Answer 1

Answer:

200 N

Explanation:

F 1=5N

T1 = 6 s

acceleration, a1 = velocity /time

= 10/ 6 m/s^2

we know F1= m.a

so 5 = m 10/6

5 x 6/10 = m

m= 3 kg

now mass and displacement is equal for both the cases

now T2 = 1.5 s

a2 = 10/1.5

now F1/a1 = F2/ a2

=> 5*6/10 = F2* 1.5/ 10

=>. 30 * 100/15 = F2

=> F2 = 200 N

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Answer 2

Answer:

20n N

Explanation:

Ashok Ashok

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