What do you mean by retarding force?
What do you mean by retarding force?
1. retarding force – the phenomenon of resistance to motion through a fluid. drag. resistance – any mechanical force that tends to retard or oppose motion.
How do you calculate retarding force?
A retarding force, is simply put, the force that causes the acceleration of an object to be negative. In F = ma , where F is the resultant force, the force that is against the direction of the object’s current velocity is the retarding force.
What is the work done by the retarding force?
Expression of kinetic energy It can be calculated by applying an opposing force to stop the body and calculating the amount of work done by the opposing force. ∴ Kinetic energy of the body = work done by the retarding force in stopping it.
Is retarding force negative?
Yes, Retarding force is always negative as the direction of force and the direction of motion is opposite to each other, making 180° between them.
What is retarding force Class 9?
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 retarding force that occurs from contact with a surface?
Friction is the force that resists relative motion between two surfaces sliding across each other.
What is retardation give example?
When the velocity of a body decreases, its acceleration is negative. Negative acceleration is called ‘retardation’ or ‘deceleration’. For example, when a stone is thrown upwards, it is under retardation. Similarly, when a bus approaches a bus-stop, its motion gets retarded.
What is the formula of retardation?
a = Change in velocity/Time taken So, you can get a negative acceleration value in the case of v
Which of the following equation is correct for uniform retardation?
Answer: A body moving with a uniform retardationcovers 3 km before its speed is reduced to half of its initial value. Therefore, s = 3 Km. Now according to third equation of motion we have, v2=u2+2as, where, v = final velocity, u = initial velocity, a = retardation and s = distance covered.
Is retarding force positive or negative?
∴ When a force retards the motion of a body, the work is done by the force during retardation is negative.
What is retarding acceleration?
Retardation means negative acceleration. When the velocity of a body increases with time, it is called acceleration. However, if the velocity decreases, then it is called retardation, deceleration or negative acceleration. Retardation is also measured as change in velocity per time taken for change.
Where can I find retarding force in Class 9?
- Retarding force, F=50N.
- Mass of the body, m=20kg.
- Initial velocity of the body, u=15m/s.
- Final velocity of the body, v=0.
