A ball is rolled off the edge of a horizontal table at a speed of 4 m/s. It hits the ground after 0.4 sec. Which statement given bellow is true?
Text Solution
Verified by ExpertsThe correct answer is:
A
∴ R = u.T = 4 × 0.4 = 1.6 m
v y = gT = 4 m/s
∴ v = 
= 
m/s
H = 
gT 2 = 
× 10 × (0.4) 2 = 0.8 m
tan α = 
= 1 ⇒ α = 45 0
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