Acceleration is the rate of change of velocity of an object in the same straight line of the unbalanced force. … The amount of gravity between two objects is dependent on
their mass and the distance
between their centres.
Is acceleration dependent on force?
The acceleration of an object
depends directly upon the net force acting upon the object
, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased.
Does distance depend on acceleration?
Though the distance and the velocity are constantly changing,
the acceleration of an object in freefall is always constant
. … You can have now a lot of different objects covering the same distance (a car, a man, a dog, a snail a rocket…etc.). Each object takes a certain TIME do cover the same distance.
Is acceleration not affected by force?
The second law states that the acceleration of an object is dependent upon two variables – the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.
What is the relationship between the force and the acceleration?
A simple mathematical relationship exists between the mass of an object (m), the net force on the object (f) and its acceleration (a). The acceleration of an object is
directly proportional to the net force and indirectly proportional to the object’s mass (a =
f
/
m
)
.
What happens to the acceleration when the velocity is zero?
If acceleration is 0,
the velocity is not changing
. If the velocity is constant (0 acceleration) then the object will continue without slowing down or speeding up. The graph describes an object which is accelerating from 0s to 10s, and not accelerating from 10s to 15s.
Calculating acceleration involves
dividing velocity by time
— or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Dividing distance by time twice is the same as dividing distance by the square of time. Thus the SI unit of acceleration is the meter per second squared .
What does force equal to?
According to NASA, this law states, “Force is equal to
the change in momentum per change in time
. For a constant mass, force equals mass times acceleration.” This is written in mathematical form as F = ma. F is force, m is mass and a is acceleration.
What does force Cannot change?
So a force cannot
change the mass of an object
– this is the correct one and lots of research has done earlier on it.
What is negative acceleration called?
Note:The negative acceleration is also referred to as
retardation
and the body is said to be retarding. If object A was moving in a negative direction and speeding up, then the acceleration of the body would have been in the same direction as that of its velocity.
Is it true that any change in velocity for any reason is called acceleration?
Any change in velocity for any reason is called
acceleration
. The greater the net force applied to a given object, the more it will accelerate. … The acceleration of an object is determined by the net force acting on the object and the object’s MASS.
Why is force directly proportional to acceleration?
As we increase the force on an object the acceleration increases proportionally. Since the mass does not change as the acceleration increases, we can say that force is equal to acceleration. … Force is directly proportional to acceleration (force ~ acceleration) As
force increases acceleration increases
.
What is the law of acceleration?
Newton’s second law of motion
can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Does 0 velocity mean 0 acceleration?
In option (C),
zero velocity does not imply that the acceleration is zero
. For e.g., when a ball is released from a height, its velocity will be zero but the acceleration exerted due to gravity will be non-zero so option (C) is correct. In option (D), constant speed does not imply that acceleration is zero.
How do you know if acceleration is 0?
When acceleration is zero (that is, a = dv/dt = 0),
rate of change of velocity is zero
. That is, acceleration is zero when the velocity of the object is constant. Motion graphs represent the variations in distance, velocity and acceleration with time.
Can a body have a velocity without acceleration?
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.
