Question

2. 3. An object of mass 0.5kg travels 10m in 5sec. Find its momentum. 1. 10kg.m/sec 4. 20 kg.m/ 1 kg.m/sec 100kg.m/sec A balloon filled with water is moving horizontally with a velocity of 7m/s. he momentum of the ba​

Answer 1

Answer:

__

Solution

The angle subtended by an arc at the centre of the circle is twice the angle subtended by this arc at any point on the remaining part of the circle.

Now the angle subtended by the arc at the centre is

∠

AOB, which is

120

∘

.

∠

APB is the angle subtended by the arc at a point on the remaining part of the circle. So it should be half the angle subtended at the centre (which is

120

∘

). Half of

120

∘

is

60

∘

, so angle

∠

APB =

60

∘

.