A body is constrained to move in z direction. A froce 3i-9j+5k is applied on it find the work done by this froce in moving the body by 5km
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As the body is constrained to move only in z-direction we should take Force and displacement along that direction only to find work.
Force acting along z-direction = 5 N
Work done = Force × Displacement
= 5 N × 5 km
= 25 kJ
Work done by force to move body by 5 km is 25 kJ
Force acting along z-direction = 5 N
Work done = Force × Displacement
= 5 N × 5 km
= 25 kJ
Work done by force to move body by 5 km is 25 kJ
Answered by
2
The body is constrained to move in dir z, hence displacement will be 5k
and Force= 3i-9j+5k
Work done = Force . displacement
= (3i-9j+5k) . (5k)
= 0i +0j + 25
= 25
Hope this helps!!!
promote it as brainliest!! if you think it is!! thanks !!
and Force= 3i-9j+5k
Work done = Force . displacement
= (3i-9j+5k) . (5k)
= 0i +0j + 25
= 25
Hope this helps!!!
promote it as brainliest!! if you think it is!! thanks !!
JunaidMirza:
It will be better if you mention their that you did dot product. Btw good answer. Keep it up.
k, will keep that in mind!! thanks for the pointers!!
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