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Question: A particle is projected with a velocity \(6\widehat{i} + 8\widehat{j}\), 2m away from a vertical wal...

A particle is projected with a velocity 6i^+8j^6\widehat{i} + 8\widehat{j}, 2m away from a vertical wall. After striking the wall it lands at …………… away from the wall B

A

3 m

B

3.3 m

C

5.5 m

D

6.6 m

Answer

6.6 m

Explanation

Solution

T = 2uyay=2×810=1.6s\frac{2u_{y}}{a_{y}} = \frac{2 \times 8}{10} = 1.6s

t = 3/6 = 0.5 s

x = ux (T - t) = 6(1.6 – 0.5) = 6.6 m