Question
Question: A projectile can have the same range R for two angles of projectile. If t<sub>1</sub> and t<sub>2</s...
A projectile can have the same range R for two angles of projectile. If t1 and t2 are the times of flights in the two cases, then product of the time of flights is proportional to
A
R2
B
1/R2
C
1/R
D
2g/R
Answer
2g/R
Explanation
Solution
t1 = 2usinθ/g, t2 = 2ucosθ/g and t1t2 = 2u2 sin2θ/g2 = 2R/g