Asked by srikala
12.
A particle starts moving from rest with uniform acceleration. it travels a distance x in first 2 sec and a distance y in the next 2 sec .Then
options:
1.y=x
2.y=3x
A particle starts moving from rest with uniform acceleration. it travels a distance x in first 2 sec and a distance y in the next 2 sec .Then
options:
1.y=x
2.y=3x
Answers
Answered by
ajayb
X distance moved in first 2 secs.
=> x=0.2+(1/2).a.2^2= 2a ...(1)
velocity at the end of 2 secs.(say v)
=> v = 0+a.2 = 2a ....(2)
y distance covered in the next 2 secs.
=> y = v.t +(1/2).a.t^2
or y = 2a.2 + (1/2).a.2^2 = 6a ...(2)
From, (1) & (2) y = 3x ...Option (2)
=> x=0.2+(1/2).a.2^2= 2a ...(1)
velocity at the end of 2 secs.(say v)
=> v = 0+a.2 = 2a ....(2)
y distance covered in the next 2 secs.
=> y = v.t +(1/2).a.t^2
or y = 2a.2 + (1/2).a.2^2 = 6a ...(2)
From, (1) & (2) y = 3x ...Option (2)
Answered by
Anonymous
a ball dropped on to the floor from a height of 10mrebounds to a height 2.5m. If the ball is in contact with the floor for 0.02s,its avg. acceleration during contact
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.