A fixed rifle is aimed at a point on a vertical wall 1440 m horizontally away and 1080 m high above the point of the rifle end. A bullet is fired at 150 m/s towards the target. 10 sec after firing the gravitational field vanishes, find where the bullet will hit the vertical wall.[g = 10 m/s2]

Engineering

Physics

Projectile Motion

Question

A fixed rifle is aimed at a point on a vertical wall 1440 m horizontally away and 1080 m high above the point of the rifle end. A bullet is fired at 150 m/s towards the target. 10 sec after firing the gravitational field vanishes, find where the bullet will hit the vertical wall.[g = 10 m/s²]

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

${v_{y}]}_{t = 10} = 10 m / s ↓$
${s_{y}]}_{t = 10} = 400 m$
${s_{x}]}_{t = 10} = 1200$
$t_{2} = \frac{240}{120} = 2 \sec$
${s_{y}]}_{t_{2}} = 20 ↓$
Net s = 400 – 20 = 380 m

Please subscribe our Youtube channel to unlock this solution.