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CBSE Class 11-science Answered

what is lowest speed of an object in the projectile motion fired with an angle 30º and speed is 5m/s?
Asked by nirvardhansinghranawat7773 | 11 Oct, 2019, 01:27: PM
Expert Answer
lowest speed of projectile motion is when the object reaches the maximum height.
 
At the point of maximum height vertical component of velocity is zero and the particle has only horizontal component.
 
Hence lowest speed of the object in projectile motion is  ( 5 cos30 ) m/s  , i.e. 5×√3/2 = 4.33 m/s
Answered by Thiyagarajan K | 11 Oct, 2019, 02:44: PM

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