If the momentum of a body increases from 10 units to 25 units in 5sec, then the force acting on it is
- A1 unit
- B2 units
- C3 units
- D4 units
Solution & Step-by-step Explanation
According to Newton's Second Law of Motion, the force (F) acting on an object is equal to the rate of change of its momentum (Δp) with respect to time (t).
Force (F)=
Time taken (t)
Change in momentum (Δp)
Given data:
Initial momentum (p
1
) = 10 units
Final momentum (p
2
) = 25 units
Time interval (t) = 5sec
Calculating change in momentum:
Δp=p
2
−p
1
=25−10=15 units
Now, computing the force:
F=
5
15
=3 units
Force (F)=
Time taken (t)
Change in momentum (Δp)
Given data:
Initial momentum (p
1
) = 10 units
Final momentum (p
2
) = 25 units
Time interval (t) = 5sec
Calculating change in momentum:
Δp=p
2
−p
1
=25−10=15 units
Now, computing the force:
F=
5
15
=3 units