Admin Can an object have a northward velocity and an southward acceleration explain?
Yes, for example, a car that is traveling northward and slowing down has a northward velocity and a southward acceleration. Both velocity and acceleration are negative in the case of a car traveling in the negative x-direction and speeding up.
Is it possible to have a positive velocity and negative acceleration?
An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration).
Is it possible your cycle has a northward velocity but southward acceleration?
No , it is not possible because the velocity and acceleration both should be in one direction then only movement of cycle is possilble or else cycle will not move .
When can an object have a southward velocity and southward acceleration?
Solution for problem 7Q Chapter 2. Yes it can. If an object moving northward suddenly starts to decelerate its acceleration is southward. The velocity of the object in the picture is northward, its acceleration is downward.
Can an object have zero velocity and still be accelerating?
Answer: Yes, an object can have zero velocity and still be accelerating simultaneously. Let us consider an object moving in the forward direction. Then the object will start to move in the backward direction.
Can an object have negative velocity and negative acceleration?
An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration).
What does it mean if an object has a positive velocity but a negative acceleration?
Another way to say this is that if the acceleration has the same sign as the velocity, the object will be speeding up. And if the acceleration has the opposite sign as the velocity, the object will be slowing down.
Can an object have constant acceleration and zero velocity?
Answer: (a) The given statement is possible. The word acceleration implies a change in the object’s velocity. When an object is thrown upwards, the maximum height velocity of the body is zero, but the constant acceleration due to gravity is still working.
Can an object have zero acceleration and nonzero velocity?
It is possible to have a non-zero value of acceleration when the velocity of a body is zero. At the highest point, the velocity of the ball becomes zero, after which it starts to fall down. At this point, the velocity of the ball is zero yet its acceleration is equal to g=9.8m/s2.