Physics · 2024
JEE Main · 29 January 2024, Shift 1 · Q34
A block of mass 100 kg slides over a distance of 10 m on a horizontal surface. If the co-efficient of friction between the surfaces is 0.4, then the…
A block of mass $\displaystyle 100$ kg slides over a distance of $\displaystyle 10$ m on a horizontal surface. If the co-efficient of friction between the surfaces is $\displaystyle 0.4$ , then the work done against friction (in $\displaystyle J$ ) is :
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 4000$
More from Work, Power and Energy
- A particle is placed at the point A of a frictionless track A B C as shown in figure. It is gently pushed towards right. The speed of the particle…2024
- Four particles A, B, C, D of mass m/2, m, 2 m, 4 m, have same momentum, respectively. The particle with maximum kinetic energy is:2024
- A body of mass 2 kg begins to move under the influence of time dependent force F=(2 t i+6 t^2 j) N, where i and j are unit vectors along x and y…2026
- A block of mass 1 kg, moving along x with speed v_i=10 m / s enters a rough region ranging from x=0.1 m to x=1.9 m. The retarding force acting on the…2025
- A body of mass 4 kg is placed on a plane at a point P having coordinate (3,4) m. Under the action of force F=(2 i+3 j) N, it moves to a new point Q…2025
- A mass of 1 kg is kept on a inclined plane with 30° inclination with respect to horizontal plane and it is at rest initially. Then the whole assembly…2026
- A sand dropper drops sand of mass m(t) on a conveyer belt at a rate proportional to the square root of speed (v) of the belt, i.e. dm/dt ∝ √v. If P…2025
- A block of mass 1 kg is pushed up a surface inclined to horizontal at an angle of 60° by a force of 10 N parallel to the inclined surface as shown in…2024
JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.