Calculate the kinetic energy of a body of mass 50 kg moving with 5 m st.
Answers
Answered by
4
Given:-
- Mass (m) = 50 kg
- Velocity (v) = 5m/s
⠀
To Find:-
- Kinetic Energy.
⠀
Solution:-
Formula used:-
→ KE = 1/2mv²
⠀
Where,
- KE is the Kinetic Energy.
- m is the mass.
- v is the speed/velocity.
⠀
According to the question,
→ KE = 1/2 × 50 × 5²
→ KE = 1/2×50 × 25
→ KE = 25×25
→ KE = 625 J
⠀
Hence,
- the kinetic energy of the body is 625 Joules.
Answered by
3
Given,
Mass m=50kg
Velocity=50cms
−1
1cm=0.01m
So, velocity=50×0.01ms
−1
v=0.5ms
−1
We know,
Kinetic energy =
2
1
mv
2
Substituting value of m and v in the equation:
Kinetic energy =
2
1
×50×0.5
2
=6.25J
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