Can a body have zero velocity and still acceleration? give examples,Please answer by 7:30 pm today
Yes this is possible for a body to have zero velocity but non-zero acceleration but this will bepossible for a very small fraction of time. For example, consider the situation of throwing a ball upwards. When you throw a ball vertically with some initial velocity its velocity decreases due to the downward acceleration due to gravity. At maximum its velocity reduces to zero but it still has non-zero acceleration due to gravity because of which it tends to fall down.
I'll give one, you can think of others.
A ball, any ball reach its maximum height (like a golf ball). It has stopped rising so before falling it must have stopped. Gravity (in the form of an acceleration) hasn't stopped acting and it is non-zero. The ball must begin to fall. It has a zero velocity for that one split second.
You could say that about any race car that loses its grip on the tract and starts going the other way. At some point it was zero in the direction it was first going.