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Projectile motion. Question is explained inside.

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asked Aug 23, 2017 in Physics by Apcuber247 (40 points) ● 1
A ball is projected from top of a tower with a velocity of 5 metre per second at an angle of 53 degree to the horizontal. Its speed when it is at a height of 0.45 metre from the point of projection is?

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answered Aug 23, 2017 by Annu Priya (18,055 points) ● 24 ● 45 ● 83
selected Sep 1, 2017 by Abhishek Kumar
 
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Solution: Let u be the initial velocity.

Hence the total speed v =4m/s

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