Question

20. When the spring balance and weight hanger system as shown is taken and slowly pulled up then
a) The reading in the spring balance increases
[ ]
b) The reading in the spring balance decreases
c) The string is broken
d) None of these
​

Answer 1

Answer:

b)

Explanation:

Answer 2

When the spring balance and weight hanger system are pulled slowly upwards then the reading on the spring balance increases.

• The spring balance shows the weight of the object on the hanger or simply the force required to maintain the object at equilibrium.
• When we pull the system upwards, the force due to acceleration which acts upwards also needs to be countered in order to maintain equilibrium.
• And hence, when the spring balance and weight hanger system are pulled slowly upwards then the reading on the spring balance increases.

Answer 3

When the spring balance and weight hanger system are pulled slowly upwards then the reading on the spring balance increases. (a)

• The spring balance shows the weight of the object on the hanger or simply the force required to maintain the object at equilibrium.
• When we pull the system upwards, the force due to acceleration which acts upwards also needs to be countered in order to maintain equilibrium.
• And hence, when the spring balance and weight hanger system are pulled slowly upwards then the reading on the spring balance increases.