Applied Mechanics - Engineering
Q1: A ball which is thrown upwards, returns to the ground describing a parabolic path during its flightA
vertical component of velocity remains constant
B
horizontal component of velocity remains constant
C
speed of the ball remains constant
D
kinetic energy of the ball remains constant.
ANS:B - horizontal component of velocity remains constant Because vertical component Vsin (theta) is affected by gravitational acceleration (g) where as the horizontal component V cos (theta) remains constant as it is unaffected by gravity. |
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