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Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Board, MP Board, Telangana Board etc NCERT solutions for...
A 1400kg car skids in the forward direction across a dry, asphalt road but comes safely to a smooth stop. The coefficient of kinetic friction between the rubber and the road is 0.700. What is the force of kinetic friction on the car?
The description of force can be given from Newtonian theory, in which through the second law of Mechanical Physics proposed by Newton is defined as the product between mass and acceleration. This force has vector characteristics so it has a magnitude, meaning and di...
, particles are tightly packed, which means they have a high density. This curtails their movement. Moreover, the electrons in each atom are in constant motion, so the atom has a small vibration. Nonetheless, its position remains fixed, which is why solid particles have low kinetic energy....
Thermal energy is the total kinetic energy within a system, observed as either vibrational, rotational or translational kinetic energy. However, there is also a “hidden” (or rather, microscopic) energy that exists in the form of internal energy which considers all the particles in a system, ...
a big place, Sci-Hub is still up and running at other domain names. Despite my own frustrations with the system as it stands, I don’t think that simply ignoring the law is the correct way to proceed8. There has been progress, both in terms of publishing models and in policy. Though...
An enzyme is a biological catalyst that always a protein. It accelerates the rate in the cell of a particular chemical reaction. The enzyme doesn't destroy during the reaction and may reuse them various times. There are several different types of enzyme molecules in a cell, each unique to ...
There are two types of friction, for objects at rest and for objects in motion and they are called static and kinetic friction, respectively. The frictional force depends partly on the contact surfaces of the object and of the ground on which the object rests or mo...
Answer to: A 950 kg car travels at a constant speed of 35 m/s. If 350 N of friction act on the car, what is the forward force exerted on the car?...