Question

Three blocks of masses 4kg, 6kg, 8kg are connected by a string. They are placed on a
frictionless surface. If the system is pulled by a force of F= 36N then the acceleration of the
and tension acting on the string is
a) 4m/s+ & 14N
b) 8m/s2 & 7N c) 4 m/s2&28 N d]16 m/s & 196 N
body is​

Answer 1

EXPLANATION.

Three block of mass = 4kg, 6kg, 8kg are

connected by a string.

they are placed on a frictionless surface.

if the pulley by a force = 36N.

To find acceleration and tension

on a string.

According to the question,

From Newton second law of motion.

=> F = MA

where M = sum of all blocks.

=> M = 4 + 6 + 8 = 18

=> 36 = 18a

=> a = 2 m/s²

Tension in a string.

=> 36 - T¹ = 4a

=> 36 - T¹ = 8

=> T¹ = 28N

Therefore,

Acceleration = 2 m/s²

Tension = 28N

Answer 2

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