if the angle between force and displacement is greater than 90 degree then the work done will be:
a: Positive
b: Negative
c: Zero
d: Maximum
Answers
Answered by
16
............Negative.............
Work done = force x displacement x cos of angle between force and displacement
cos of more than 90 is negative..
Plz mark me as BRAINLIEST...
ashisingh24:
it is zero when it is 90 degree
i have read the question wrong ....i didn't saw that there has been wriiten that angle greater than 90
If the angle is greater than 90
It will be in the second quadrant,
where cos function is negative.
It will be in the second quadrant,
where cos function is negative.
what is your name @muvasreetham
Hi
My name is that itself
why??
just for confirmation its not normal in my are are you from south india
yes
u r from??
Answered by
2
The work done will be b: negative.
What is work done?
- Work is said to be done when a body undergoes movement due to an external force applied on it.
- Work done is given as dot product of Force applied on body and displacement of the body.
- Work done = F · d = F * d * cosθ, where F is the magnitude of force exerted on the body, d is the displacement of body and θ is the angle between direction of force and direction of displacement.
When angle between force and displacement is more than 90°, the work done is negative because value of cosθ is negative for θ more than 90°.
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