The length of a vector indicates the magnitude of the vectoorA. TrueB. False
2 answers:
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Answer:
Work done against gravity will be
W = Mgℓ
Explanation:
Work done to raise the mass from ground to given height is against gravity
So here work done is given by the formula
here we know that
it is the force due to gravity which is also known as weight
so here distance moved by the object is given as
d = ℓ
now work done is given as
W = Mg ℓ
- Initial velocity=u=12m/s
- Final velocity=v=20m/s
- Time=t=45s
Now
- Distance=s