please help me all are the problems i cant solve i want to learn so help me freinds
Answers
Explanation:
how much question r you are not working please do again you can do
Answer:
Explanation:
26
(a) A body in circular motion is an example of constant acceleration(centripetal acceleration) and and zero velocity. Moreover when a ball is thrown upwards and when it reaches its maximum height, then the velocity is zero but the acceleration due to gravity is still there.
(b) circular motion is the example of moving a certain distance with acceleration in perpendicular direction. In circular motion, motion is always tangential and the centripetal acceleration is always perpendicular to this motion.
27 Use the formula V= 2πR/T
28 In case of uniform velocity, acceleration is 0 and then we can simply use Distance = Velocity * Time
30 use the formula => S=ut+1/2 at² and calculate the distance covered by them in 2 sec taking initial velocity to be 0
31 use the formula => v²=u²+2as
answer for 29 is attached as image.
