Two blocks (m = 0.5 kg and M = 4.5 kg) are arranged on a horizontal… | JEE Main 2021 (17 Mar, Shift 1)

Q6JEE Main 2021 · 17 MAR · SHIFT 1Medium

Two-Body Friction

Two blocks (m = 0.5 kg and M = 4.5 kg) are arranged on a horizontal frictionless table as shown in figure. The coefficient of static friction between the two blocks is $\frac{3}{7}$ . Then the maximum horizontal force that can be applied on the larger block so that the blocks move together is ___________ N. (Round off to the Nearest Integer) [Take g as 9.8 ms ${}^{-}$ 2]

Numerical answer type. Work it out, then open the answer.

Show answer and solution

Answer: 21

m moves only through friction: $a_{max} = \mu g = \frac{3}{7} \times 9.8 = 4.2$ m/s $^2$ .
$F_{max} = (M + m)a_{max} = 5 \times 4.2$
$F_{max} = 21$ N

Report a mistake

More questions on Two-Body Friction

An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch…JEE Main 2020 (6 Sep, Shift 1)
Two blocks A and B of masses mA = 1 kg and mB = 3 kg are kept on the table as shown in…JEE Main 2019 (10 Apr, Shift 2)
A block of mass 10 kg is in contact against the inner wall of a hollow cylindrical drum…NEET 2019
Given in the figure are two blocks A and B of weight 20 N and 100 N, respectively. These…JEE Main 2015
A block A of mass 4 kg is placed on another block B of mass 5 kg, and the block B rests…JEE Main 2014 (9 Apr, Shift 1)
A block of mass m is in contact with the cart C as shown in the figure. The coefficient…NEET 2010 (AIPMT, Prelims)
A heavy uniform chain lies on horizontal table top. If the coefficient of friction…NEET 1991 (AIPMT)
In the given figure the blocks A, B and C weigh 4 kg, 6 kg and 8 kg respectively. The…JEE Main 2026 (24 Jan, Shift 1)

Two-Body Friction question from JEE Main 2021 (17 Mar, Shift 1)

More questions on Two-Body Friction