What force is needed to accelerate a 1 kg object at a rate of 1 m sec2?
A newton is the SI unit of force. An unbalanced force of 1 N will accelerate a mass of 1 kg at 1 m/s2. One Newton of force is equal to one kilogram-meter per second per second (1kg-m/s2).
What are two ways to accelerate?
Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.
Is it possible to have constant speed?
To summarize, an object moving in uniform circular motion is moving around the perimeter of the circle with a constant speed. While the speed of the object is constant, its velocity is changing. Velocity, being a vector, has a constant magnitude but a changing direction.
What are the two situations in which acceleration is negative?
When the speed of a moving body of the decreases, it leads to retardation and therefore, the acceleration is negative. 1) When a moving body slows down due to any reason, the speed decreases and the acceleration is negative. 2) A cyclist is cycling and stops after 60 seconds.
What is the difference between retardation and negative acceleration?
What is the difference between negative acceleration and retardation? When the acceleration is acting in a direction opposite to the velocity, it is called called retardation. Similarly we can take the direction of the velocity to be positive, and if acceleration is opposed to it is called negative acceleration.
Is there between retardation and acceleration?
Answer Expert Verified Acceleration of a body is defined as the rate of change of its velocity with time. Velocity of the body increases with time. Retardation means negative acceleration. If the velocity of a body decreases,the acceleration is negative.
How do you convert retardation to acceleration?
On the other hand, if velocity decreases from 20m/s to 10m/s in 5s, the acceleration will be −2m/s2. In other words, the retardation of the car is 2m/s2.
What is acceleration or retardation?
Deceleration also known as retardation or negative acceleration, is the acceleration acts in the opposite direction of motion and is responsible for reducing the velocity of a body.
What is acceleration and retardation with example?
For a decelerating body, direction of velocity and acceleration is always opposite in direction. Example: When a body is thrown vertically upwards, during the upward motion, its velocity decreases and at the highest point it becomes zero. This is a case of retardation.
How do you calculate retardation force?
Complete step-by-step answer: A retarding force causes the acceleration of an object to be negative. In F=ma , where F is the resultant force, the force acts against the direction of the object’s current velocity is the retarding force.
What is the final velocity of a body under retardation?
A body moving with a uniform retardation covers 3 km before its speed is reduced to half of its initial value. Let initial velocity be u Km/hr. So its final velocity is half of initial velocity, so final velocity is, v = u2 Km/hr.