what is the difference between cntripetal acceleration and normal acceleration in uniform circular acceleration?

 

A body covers one third of its journey with speed u, next one third with speed v and last one third with speed w. calculate the average speed of the body during the entire journey.

Help please!! 

A particle moves around a circle of radius R. In moment t = 0 it was located in point O. After, its velocity changes according to V_τ = αt - βt², where α and β - positive constants. Find the modulus of the total acceleration when particle will be in point O again.

if a body loses half of its velocity on penetrating 3cm in a wooden block then how much it will penetrate more before coming to rest.

A body is projected with a certain kinetic energy,has a horizontal range R. The kinetic energy of particle will be minimum at a horizontal distance _______ (Plz give answer as fast as possible plzzz)

a car from rest and moves with constant acceleration.the ratio of distance covered by the car in nth second to that covered in n seconds is

Two particles a&b are initally at rest at a distance of l. Now it A start moving with constant velocity u along perpendicular to straight line joining initial position of a&b while b start moving with constant speed v such that its velocity is always directed toward instantaneous positions of a. Find the time after which b catches a

A lift ascends from rest with uniform acceleration of 4m/s^2, then it moves with uniform velocity and finally comes to rest with uniform retardation of 4m/s^2. If the total distance covered during ascending is 28m and total time taken for ascending is 8s respectively. Find the time for which the lift moves with uniform velocity .Also find its uniform Velocity.
 

A lift ascends from rest with uniform acceleration of 4m/s^2, then it moves with uniform velocity and finally comes to rest with uniform retardation of 4m/s^2. If the total distance covered during ascending is 28m and total time taken for ascending is 8s respectively. Find the time for which the lift moves with uniform velocity .Also find its uniform Velocity.
 

if a freely falling body travels 36% of its distance in the last second, find height from which it is falling ( g can be taken as 10)