A ball is thrown at different angles with the samespeed u and from the

1.	A ball is thrown at different angles with the samespeed u and from the same point; it has the samerange in both the cases. If y, and y, be the heightsattained in the two cases, then y, + y2 =....
Answer» ANSWER: u^2/2g Explanation: R1 = u^2 SIN2(X1)/g R2 = u^2 sin2(X2)/g since R1= R2 x2 = 90-x1 H1= u^2 sin^2(x1)/2g H2 =u^2 sin^2(x2)/2g y1 + y2 = u^2/2g ( sin^2(x1) + cos^2(x1)) y1 + y2 = u^2/2g × 1 y1 + y2 = u^2/2g Note : sin(90-x1) = cosx1

A ball is thrown at different angles with the samespeed u and from the same point; it has the samerange in both the cases. If y, and y, be the heightsattained in the two cases, then y, + y2 =....

Answer»

ANSWER:

u^2/2g

Explanation:

R1 = u^2 SIN2(X1)/g

R2 = u^2 sin2(X2)/g

since R1= R2

x2 = 90-x1

H1= u^2 sin^2(x1)/2g

H2 =u^2 sin^2(x2)/2g

y1 + y2 = u^2/2g ( sin^2(x1) + cos^2(x1))

y1 + y2 = u^2/2g × 1

y1 + y2 = u^2/2g

Note :

sin(90-x1) = cosx1

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A ball is thrown at different angles with the samespeed u and from the same point; it has the samerange in both the cases. If y, and y, be the heightsattained in the two cases, then y, + y2 =....​

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A ball is thrown at different angles with the samespeed u and from the same point; it has the samerange in both the cases. If y, and y, be the heightsattained in the two cases, then y, + y2 =....