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AP EAMCET · PHYSICS · Laws of Motion

A block of metal 2 kg is in rest on a smooth plane. It is striked by a jet releasing water of \(1 \mathrm{~kg} \mathrm{~s}^{-1}\) at a speed of \(5 \mathrm{~ms}^{-1}\), then the acceleration of the block is

  1. A \(2 \mathrm{~ms}^{-2}\)
  2. B \(2.5 \mathrm{~ms}^{-2}\)
  3. C \(0.25 \mathrm{~ms}^{-2}\)
  4. D \(50 \mathrm{~ms}^{-2}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(2.5 \mathrm{~ms}^{-2}\)

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \frac{\Delta \mathrm{m}}{\Delta \mathrm{t}}=1 \mathrm{~kg} / \mathrm{s}, \mathrm{M}=2 \mathrm{~kg} \\ & \mathrm{v}=5 \mathrm{~ms}^{-1} \end{aligned}\) Force on the block due to water jet…