an object is moving along a circular path with a speed of 20 m/s . points a and b are diametrically opposite. find the difference in velocities of the object between points a and b.
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Answer:
40m/s
Explanation:
since they are diametrically opposite, their velocities are pointing in opposite directions.
v at a=20m/s
v at b=-20m/s
va-vb=20-(-20)=20+20=40m/s
Answered by
3
Given:
An object is moving along a circular path with a speed of 20 m/s. Points 'a' and 'b' are diametrically opposite.
To find:
Difference in velocity between the two points ?
Calculation:
- Please see the vector diagram. We can say :
At point 'a' :
At point 'b' :
Now, difference between velocities :
So, magnitude of difference is 40 m/s.
Attachments:
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