A particle is projected at angle θ with speed u from the ground.
The speed of particle when it is moving at angle α from the
ground is -
(1) u cos α
(2) u cosθ · cosα
(3) u cosθ · secα
(4) u cosα · secθ
The speed of particle when it is moving at angle α from the
ground is -
(1) u cos α
(2) u cosθ · cosα
(3) u cosθ · secα
(4) u cosα · secθ
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Answer:
option 1 is correct
Explanation:
when we take components cos is taken along the angle line and sin perpendicular to angle
Refer the attachment provided above.
Hope this helps!