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Grade: 11
        A body is projected from the top of a tower with inital velocity u in horizontal direction. What is the angle between initial velocity and constant acceleration. If 90 degrees then its path should be circular (u is perpendicular to g) but not parabolic. Why
5 months ago

Answers : (1)

Aman
29 Points
							
clearly angle is 90 degree but the path is not parabolic we have two methods:                      Ist is of solving the equations that we would get.      For x axis.   X = ut.   (Here t is time).       For y axis. Y=1/2gt^2. Solving these and eliminating t.  We get equation of parabola that is   X^2=2v^2/g*Y. It is the equation of parabola.  Another is therotical
statement that      For the motion to be circular acceleration should be v^2/r but here it is not mentioned such.    Thanks please appprove if right. 
5 months ago
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