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Assertion : Particle A is projected upwa...

Assertion : Particle A is projected upwards. Simultaneously particle B is projected as projectile as shown. Particle A returns to ground in 4s. At the same time particle B collides with A. Maximum height H attained by B would be 20 m. `( g= 10 ms^-2)` .
Reason : Speed of projectile of both the particles should be same under the given condition.
.

A

(a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

(b)If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.

C

(c) If Assertion is true, but the Reason is false.

D

(d) If Assertion is false, but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
`T = (2usintheta)/g = 41`
`:. (usintheta) = 20m//s`
`:. H = (u^2sin^2theta)/(2g) = (20^2)/20 =20m` .
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