Assertion A particle is projected with speed u at an angle `theta` with the horizontal. At any time during motion, speed of particle is v at angle `alpha` with the vertical, then `v sin alpha` is always constant throughout the motion. Reason In case of projectile motion, magnitude of radical acceleration at topmost point is maximum.A. If both Asseration and Reason are correct and Reason is the correct explanation of AssertionB. If both Assertion and Reason are correct but Reason is not the correct explanation of AssertionC. If Assertion is true but Reason is falseD. If Assertion is false but Reason is true

Assertion A particle is projected with speed u at an angle `theta` wit

1.	Assertion A particle is projected with speed u at an angle `theta` with the horizontal. At any time during motion, speed of particle is v at angle `alpha` with the vertical, then `v sin alpha` is always constant throughout the motion. Reason In case of projectile motion, magnitude of radical acceleration at topmost point is maximum.A. If both Asseration and Reason are correct and Reason is the correct explanation of AssertionB. If both Assertion and Reason are correct but Reason is not the correct explanation of AssertionC. If Assertion is true but Reason is falseD. If Assertion is false but Reason is true
Answer» Correct Answer - B Assertion `v sin alpha =` horizontal component of velocity = constant Reason `a_(r) = sqrt(g^(2)-a_(t)^(2))` At highest point `a_(t) =0`. Therefore, `a_(r)`is maximum.