JEE Mains · Physics · STD 11 - 5. work,energy,power and collision
A block of mass 25 kg is pulled along a horizontal surface by a force at an angle \(45^{\circ}\) with the horizontal. The friction coefficient between the block and the surface is 0.25. The displacement of 5 m of the block is:
- A 970 J
- B 735 J
- C 245 J
- D 490 J
Answer & Solution
Correct Answer
(C) 245 J
Step-by-step Solution
Detailed explanation
Block travels with uniform velocity So \(\quad \mathrm{a}=0 \Rightarrow \mathrm{~F} \cos 45^{\circ}=\) friction…
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