Question

A plane flying horizontally at 100

1 ms

releases

an object which reaches the ground in 10 s. At

what angle with horizontal it hits the ground?

(a) 55° (b) 45° (c) 60° (d) 75°​

Answer 1

Solution:-

$tan\theta = \frac{vy}{vx}$

$tan \theta = \frac{100}{100} = 1$

$= \theta = tan^{-1} (1)$

$\theta = 45$