1 point 1. A child falls sideways off a sled while sledding on friction-less ice. What
happens to the velocity of the sled? *
a) It increases.
O b) It remains the same.
d) cannot be determined from the information given
c) It decreases.

c) It decreases.

Explanation:

If you treat this as a case of momentum of the sled while sledding on a friction-less ice, then mass and velocity are directly proportional. This means increasing either mass or velocity , the momentum of the object increases proportionally.

In this question, when the child falls sideways off the sled, the mass reduces, the velocity experiences the same causing a decrease in momentum .

When we heat a container full of water, the water in the lower part of the container i.e. near the flame gets heated first. Warm water rises up and the cold water rushes below to take its place. This water again gets heated up and rises up and the cycle continues.