4
A particles projected at an angle 60 from vertical with a velocity 20 m/s in a vertical plane Find velocity
of projecctile afer 1s. ( = 10 m/s)
1) 55 m/s
(2) 2.2 m/s
) 23 m,/s
(4) 103 m/s
Answers
Answered by
0
Answer:
b) 2.2 m/s
I am not sure about the answer
Answered by
1
Answer:
12.39 m/s
Explanation:
after 1s
vx = 20cos60 = 10
vy = 10(√3-1)
v² = vx² + vy² = 100(5-2√3)
v = 10√(5-2√3) = 12.39 m/s
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