AP EAMCET202420 May 2024Evening ShiftPhysicsLaws of MotionActual
A block of metal 2 kg is in rest on a smooth plane. It is striked by a jet releasing water of 1 ~kg ~s ⁻¹ at a speed of 5 ~ms ⁻¹ , then the acceleration of the block is
Options
- A2 ~ms ⁻²
- B2.5 ~ms ⁻²
- C0.25 ~ms ⁻²
- D50 ~ms ⁻²
Correct answer
B. 2.5 ~ms ⁻²
Step-by-step solution
aligned & m t =1 ~kg / s , M =2 ~kg & v =5 ~ms ⁻¹ aligned Force on the block due to water jet F = p t = ( mv ) t = v ~m t =5 1=5 ~N Acceleration of the block is a = F M = 5 2 =2.5 ~m / s ^2