Question

A body of mass 2kg is kept at rest A constant force of 6N starts acting on it find the time taken by the body to move through a distance of 54km.

Answer 1

Explanation:

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Answer 2

QUESTION -

A body of mass 2kg is kept at rest A constant force of 6N starts acting on it find the time taken by the body to move through a distance of 54km.

ANSWER -

From Newton's second law, acceleration (a)= Force (F)/ Mass(m).

Therefore, a= 6N/ 2kg= 3 m/s^2

From equation of kinematics,

Distance (s) = initial velocity (u)*time(t) + 0.5 at^2

Here, u is 0, s= 54000 meter and 'a' is 3m/s^2.

Thus, by substituting the values, we get the required time to be 600 seconds.