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CBSE Class 9 Answered

Q1.  A point transversed 3/4th of the circle of radius R in time T .The magnitude of the average velocity of the particle in this time interval is
optins are
1. 22R/t       2. 3*22R/2t       3.  R*2root/t     4.R/t*root2 
 
Q2.  A stone weighing 3kg from the top of a tower 100 meter high and burries itself 2m deep in the sand. the time of penetration is
 
Q3.  A body covers 200cm in the first 2sec and 220cm in next 4sec. What is the velocity of the body at the end of 7th second.
 
Q4.  A particle is moving in astraight line with intial velocity u and uniform acceleration f. if the sum of the distances travelled in t th sec and and (t+1)th seconds in 100 cm , then it velocity after t seconds in cm/sec is  
Asked by vikasg13.hardware | 22 Jun, 2017, 10:11: PM
answered-by-expert Expert Answer
Error converting from MathML to accessible text.
Note: Kindly ask other queries as a separate query each.
Answered by Yashvanti Jain | 23 Jun, 2017, 02:32: PM

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