Since speed is equal to the magnitude of the velocity vector, it will also be constant. Again, since the acceleration is the rate of change of velocity of a body with time, if the velocity is constant, the acceleration of the body will be zero. … Hence,
a body can have a constant speed
and still be accelerating.
What will happen if a force is applied to a body moving with a constant speed along a straight line 1 point?
Answer: Newton’s first law states that, if a body is at rest or moving at a constant speed in a straight line,
it will remain at rest or keep moving in
a straight line at constant speed unless it is acted upon by a force.
Why no force is required to move a body with constant velocity?
A body is to be moved with a constant velocity. …
When velocity does not change, acceleration is zero
. Hence, no force is required to move an object with constant velocity.
Does constant speed mean no force?
If an object is moving with a constant velocity, then by definition it has zero acceleration. So
there is no net force acting on the object
.
Can a body moving with constant speed have constant acceleration?
Since speed is equal to the magnitude of the velocity vector, it will also be constant. Again, since the acceleration is the rate of change of velocity of a body with time, if the velocity is constant, the acceleration of the body will be zero. … Hence,
a body can have a constant speed
and still be accelerating.
Can a body moves with zero acceleration?
4) a) Can an object be moving when its acceleration is zero? …
Yes
, an object that was set in motion in the past by some force, but that is no longer being acted on by a net force, is moving but with zero acceleration, i.e. it is moving at constant velocity.
Can a body have acceleration with zero velocity?
Answer:
Yes
, an object can have zero velocity and still be accelerating simultaneously. … While observing the object, you will find that the object will continue to move forward for some time and then stops instantly. Then the object will start to move in the backward direction.
What is continuous apply on a body so there is continuous change in the speed of a body?
Answer: The speed of a body is independent of the direction in which it moves. The velocity of a body is the displacement in unit time. … The reason for a change in velocity is the
centripetal acceleration
of the body which results in a constant change in velocity and makes the body move in a circular path.
What keeps the object remain at rest?
Inertia
is a force which keeps stationary objects at rest and moving objects in motion at constant velocity. Inertia is a force which brings all objects to a rest position. … A more massive object has more inertia than a less massive object.
What are the forces that act on a body to change its state of motion?
The force responsible for changing the state of motion of objects in all these examples is
the force of friction
. It is the force of friction between the surface of the ball and the ground that brings the moving ball to rest.
Is constant speed a balanced force?
If we push the car we make it move because our push is greater than the other forces acting upon it. If, on the other hand, an object is moving at a constant speed in a straight line then again
the forces are said to be balanced
. … We know that one force which causes objects to slow down or stop is friction.
Can a moving object have a net force of zero?
So, yes,
the object can be moving when there is no force applied to it
. Note: “force” in this discussion is to be interpreted as net force. Net force is the vector sum of all forces acting on the object.
Why does force use acceleration and not velocity?
Acceleration and velocity
Newton’s second law says that when
a constant force acts on a massive body
, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.
Can a body move without force?
Yes,
it is possible to have motion without a force being present
. Newton’s first law states that, in fact, an object must continue to move at the same…
What is the net force if you start to pull instead of pushing in 6?
What is the net force if you start to pull instead of pushing in #6? An object will continue in its state of motion unless an unbalanced force is acting on it. If forces are balanced, then
the net force equals 0
.
Why is there no work done when you carry an object?
If the box is being carried at constant velocity, then
no net force is necessary to keep it in motion
. The force exerted by the person is an upward force equal to the weight of the box, and that force is perpendicular to the motion. … It changes the direction of the motion, but it does no work on the object.
