1. Tardigrade
  2. Question
  3. Physics
  4. A ball is projected from a point O as shown in figure. It will strike the ground after (g=10 m / s 2. )

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A ball is projected from a point $O$ as shown in figure. It will strike the ground after $\left(g=10\, m / s ^{2}\right.$ )Physics Question Image

Motion in a Plane

Solution:

$s_{y}=u_{x} T+\frac{1}{2} a_{y} T^{2}$
$-60=10 \sin 30^{\circ} \cdot T-\frac{1}{2} g T^{2}$
$-60=5 T-5 T^{2}$
$T^{2}-T-2=0$
$T=4\, s$

Solution Image