Both. Acceleration is a change in speed.
yes the 3 types of acceleration are increased speed decrease speed or change in direction.
Acceleration, it can be both increase and decrease in speed. .
Applying more force in the direction of travel will increase the acceleration and therefore speed. If more force is applyed opposite to the direction of travel, acceleration will decrease.
Actually, an increase in speed during a given interval of time is called acceleration, not negative acceleration. Negative acceleration, also known as deceleration, refers to a decrease in speed over time.
No, when you step on the brake, the car undergoes deceleration. Braking causes the car to slow down by applying a force in the direction opposite to its motion, leading to a decrease in speed. Acceleration refers to an increase in speed or a change in velocity.
No, it's only the acceleration. By (-)ve acceleration ,it means retardation or deceleration..
They are not alike but they are related. A positive acceleration means an increase in velocity (speed). A negative acceleration means a decrease in velocity. Velocity (speed) has the dimensions of distance / time. Acceleration has the dimensions of distance/time2 or velocity/time.
No, it's only the acceleration. By (-)ve acceleration ,it means retardation or deceleration..
Speed is the rate of motion usually expressed as distance traveled per unit of time.Velocity is the rate of change of position. Both speed and direction are required. Acceleration is the rate of change in velocity. In common speech, acceleration is only for an increase in speed; a decrease in speed is deceleration. In physics, any increase or decrease in speed or change of direction is referred to as acceleration. For more information, look at: http://en.wikipedia.org/wiki/Speed http://en.wikipedia.org/wiki/Velocity http://en.wikipedia.org/wiki/Acceleration
You either increase or decrease the speed
If an object travels with constant acceleration, its speed will change at a constant rate over time. The object's speed will increase if the acceleration is positive, decrease if it is negative, and remain constant if the acceleration is zero.
1). increase of speed 2). decrease of speed 3). change of direction of motion