Home Physics Motion in a Straight Line Mix A cannon and a target are 5.1 km apart locat…
Physics Motion in a Straight Line Mix MCQ (Single Correct)

A cannon and a target are 5.1 km apart located on the same level. Find the time to hit the target. Speed of cannot is 240 ms -1 . Assume no air drag.

A
24.6 s, 42.6 s
B
24.69s, 48 s
C
23 s, 46.1s
D
21s, 41 s

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Text Solution

Verified by Experts
The correct answer is:
A

5.1 = u 2 sin2 θ θ /g

or sin 2 θ θ =

=

2 θ θ = 61 0 42' or θ θ = 30 0 51'

T =

= 24.69 or T = .

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