Questions
If a body is projected with an angle θ to the horizontal, then
a
its velocity is always perpendicular to its acceleration
b
its velocity becomes zero at its maximum height.
c
its velocity makes zero angle with the horizontal at its maximum height.
d
the body just before hitting the ground, the direction of velocity coincides with the acceleration.
detailed solution
Correct option is C
Acceleration of the projectile is vertically downward.Velocity of projectile can be resolved into horizontal and vertical components.Velocity of the projectile at the highest point is horizontal and it becomes perpendicular to the acceleration , so option -(3) is right.Talk to our academic expert!
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A ball is projected obliquely with a velocity 49 ms–1 strikes the ground at a distance of 245 m from the point of projection. It remained in air for
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