Why does a child in a merry - go - round press the side of his seat rdially outward?

A person riding on a merry go round emits a sound wave of certain frequency. Will the person at the centre observe Doppler effect.

A person driving a car suddenlyapplies the brakes on seeing a child on the road ahead. if he is not wering seat belt, he falls forward and hits his head against the steering wheel. Why?

Why are the eyes of frog located on the doresolateral sides of head and bulging outward?

A Merry-go-round made of a ring-like platform of radius R and mass M is revolving with angular speed omega . A person of mass M is standing on it. At one instant, the person jumps off the round radially away from the center of the round (as seen from the center of the round (as seen from the round). The speed of the round afterwards is

Why does a child feel more pain when she falls down on a hard cement floor, then when she falls on the soft muddy ground in the garden?

Why water does not come out of a dropper unless its rubber head is pressed hard?

A family consists of a grandfather, 5 sons and daughters and 8 grand child. They are to be seated in a row for dinner. The grand children wish to occupy the 4 seats at each end and the grandfather refuses to have a grandchild on either side of him. In how many ways can the family be made to sit?

Why does bond angle decreases in the hydrides of nitrogen family while going down a group ?