A body travels along a straight line with uniform accleration ` a_(1)` for time `t_(1)` and with uniform acceleration `a_(2)` for time `t_(2)` . What is the average acceleration?

A body travels along a straight line with uniform acceleration a_(1) for time t_(1) and with uniform acceleration a_(2) for time t_(2) for time t_(2) . What is the average acceleration?

a. If the velocity of a body is zero, does it mean that its acceleration is also zero ? (Yes//No) b. If the acceleration of a body is zero does it mean that its velocity is also zero ? (Yes//No) c. If a body travels with uniform acceleration a_(1) for a time t_(2) thenthe average acceleration is given by a_(av) =(a_(1)t_(1)+a_(2)t_(2))/(t_(1)+t_(2) (Yes//No) d. If a body starts from rest and moves with uniform acceleration the displacemects of the body is 1 s , 2 s, 3 s , etc., are in the ration of (1: 4: 9), etc. (True//False) e. For a body moving whith uniform acceleration, the displacent of the bosy in successive seconds is in the ration of 1: 3: 5: 7 .........................(True//False) .

A person travelling on a straight line moves with a uniform velocity v_1 for some time and with uniform velocity v_2 for the next equal time. The average velocity v is given by

A particle move with velocity v_(1) for time t_(1) and v_(2) for time t_(2) along a straight line. The magntidue of its average acceleration is

A body starts form rest and moves along a straight line path with uniform acceleration. The atio of velocities at 1= s and t= 2s is __________

A car starts from rest and moves with uniform acceleration for time t then it moves with uniform speed of 60 km/h for time 3t and comes to rest. Find the average speed of car in its total journey.

Two particles start simulataneously from the same point and moves along two straight lines inclined at angle alpha , one with uniform velocity v_(0) and other from the rest with uniform acceleration, a_(0) . After how much time their relative velocity is minimum and what is it equal to?