Question

Weight (in grams) required
to break the thread of
-Silk
-nylon
-wool
-cotton
-polyester​

Answer 1

Let the weight of the fireman be mg and his downward acceleration be a.

Breaking strength of rope T=

3

2

mg (given)

∴ ma=mg−T

OR ma=mg−

3

2

mg

OR ma=

3

1

mg ⟹a=

3

g

solution

PHYSICS

avatar

Asked on October 15, 2019 by

Sreetama Mall

With what minimum acceleration can a fireman slide down a rope while breaking strength of the rope is

3

2

of the weight?

Share

Study later

VIDEO EXPLANATION

ANSWER

Let the weight of the fireman be mg and his downward acceleration be a.

Breaking strength of rope T=

3

2

mg (given)

∴ ma=mg−T

OR ma=mg−

3

2

mg

OR ma=

3

1

mg ⟹a=

3

g

solution

PHYSICS

avatar

Asked on October 15, 2019 by

Sreetama Mall

With what minimum acceleration can a fireman slide down a rope while breaking strength of the rope is

3

2

of the weight?

Share

Study later

VIDEO EXPLANATION

ANSWER

Let the weight of the fireman be mg and his downward acceleration be a.

Breaking strength of rope T=

3

2

mg (given)

∴ ma=mg−T

OR ma=mg−

3

2

mg

OR ma=

3

1

mg ⟹a=

3

g

solution