Question

12. Two blocks of mass 5 kg and 10 kg are placed as shown in the figure.
Friction coefficient between 5 kg and 10 kg blocks is u = 0.4 and friction
coefficient between ground and 10 kg block is zero. If forces 20 N and 10
N act on both the blocks as shown. Then
10N
M = 0.4
5kg
10kg
20N
Tu = 0
(A) both blocks move together with same acceleration
(B) friction force acting on 5 kg block is 13.33 N in the direction of 20 N
force
(C) acceleration of 10 kg block is 0.66 m/s in the direction of 20 N force
(D) magnitude of net force acting on 10 kg mass is less than the net force
acting on 5 kg mass​

Answer 1

Answer:

12. Two blocks of mass 5 kg and 10 kg are placed as shown in the figure.

Friction coefficient between 5 kg and 10 kg blocks is u = 0.4 and friction

coefficient between ground and 10 kg block is zero. If forces 20 N and 10

N act on both the blocks as shown. Then

10N

M = 0.4

5kg

10kg

20N

Tu = 0

(A) both blocks move together with same acceleration

(B) friction force acting on 5 kg block is 13.33 N in the direction of 20 N

force

(C) acceleration of 10 kg block is 0.66 m/s in the direction of 20 N force

(D) magnitude of net force acting on 10 kg mass is less than the net force

acting on 5 kg mass

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