Question

the sphere is accelerated upwards with the help of a cord whoes breaking strength is 5 times its weight the maximum acceleration which the sphere can move up without cord breaking is ?​

Answer 1

Answer:

4g

Explanation:

This is the question about motion in a vertical plane.

We know that if a mass is moving in a vertical plane then the acceleration is maximum at the lowest point

At the highest or peak point if the tension in the string is T then it will act vertically upward, the weight mg will act vertically downward

If the centripetal acceleration is a then

$T=mg+ma$

Since the breaking strength is 5 times the weight

Therefore, T = 5mg

$5mg=mg+ma$

$\implies a=5g-g$

$\implies a=4g$

Hope this helps.

Answer 2

4g is the max acceleration with which sphere can move up without breaking.