MHT CET20227 Aug 2022Morning ShiftPhysicsMotion in Two DimensionsActual
An aeroplane is flying in a horizontal direction with a velocity of 540 ~km / hr at a height of 1960 ~m . When it is vertically above the point A on the ground, a body is dropped from it. The body strikes the ground at point B . The distance AB is equal to ( g =9.8 ~m / s ^2 )
Options
- A2000 ~m
- B3000 ~m
- C3600 ~m
- D4000 ~m
Correct answer
B. 3000 ~m
Step-by-step solution
From h = 1 2 gt ^2 We have t _ OB = 2 ~h _ OB g = 2 1960 9.8 =20 ~s Horizontal distance AB = vt _ OB = (540 5 18 ~m / s )(20 ~s )=3000 ~m