Question

A block of mass 10 kg on a smooth surface is pulled by means of a rope of mass 2 kg. If the tension at the midpoint of the rope is 33 N, the force applied at the other end of the rope is
A) 72N B) 54N C) 36N D) 48N

Answer 1

Answer:

C) 36N

Explanation:

Correct option is

C

36 N

The correct option is A

Given,

Block of mass is 10kg

Rope of mass is 2kg

F=33N

So,

At midpoint A of the rope

F=ma

36=(2+10)a

a=

12

36

=3m/s

2

Now,

36−T

A

=

2

m

×a

36−T

A

=

2

2

×3

T

A

=36−3=33N

Where T

A

is the Tension at point A