A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height
of 2.5 m. During the collision, the per cent loss in the kinetic energy is:
A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height
of 2.5 m. During the collision, the per cent loss in the kinetic energy is:
1). 100%
2). 25%
3). 50%
4). 75%
1 answers
Other Questions
1. रेल मंत्रालय ने विलेज ऑन व्हील्स नामक परियोजना शुरू करने की घोषणा किस वर्ष की थी ?
2. In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose the option ‘No improvement’.
The trustees were supposed to withheld the secret from the elders before the ceremony.
A. Was supposed to withheld
B. In supposing to be withheld
C. Were supposed to withhold
D. Were supposedly withholding
3. If cos2 θ - sin θ = 1/4, then what is the value of sin θ?
4. Read the following passage carefully and answer the questions given below it. Certain words have been highlighted for your attention.
Today, social networking is as routine as sending an e-mail at home or work. Employees swap updates on Facebook and Twitter, log opinions at blogs, and upload snapsh
5. Direction: 8 people are sitting in 2 rows, 4 in each row. A, B, C, D in first row faces South, not necessarily in the given order & each likes a color from the set: Red, Yellow, Blue and Green. Similarly, K, L, M & N sit on the second row facing North & each likes a color from the set: Black, White,
6. Keibul Lamjao National Park is located on which lake?
7. In the following question, a sentence has been given in Direct/Indirect Speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct Speech.
My mother told she was going out for shopping and asked me if I wanted something.
8. सूर्य ग्रहण कब होता है ?
9. City U is 9 km towards the east of City V.
City W is 5 km towards the south of City U.
City X is 3 km towards the west of City W.
City Y is 5 km towards the north of City X.
City Z is 7 km towards the south of City X.
Which of the cities lie on a straight line?
10. $SnCI_{2} + 2HgCI_{2} ---> Hg_{2}CI_{2} + SnCI_{4}$
In the given reaction:
