Math, asked by piyushjiloka97, 12 hours ago

a ball of mass 100g dropped from a height and reaches ground in 4sec.After hitting the ground,it rebounds with 80%of its K.E. .Find the height at which ball reaches after rebound.Pls someone send exact answer of this question.

Answers

Answered by namratabakshi86

2

Which class question is this ??

Answered by rjking19

1

Answer:

Height will be 10 cm

Step-by-step explanation:

Use K.E formula 1/2mv2 u will get 800J as K E

Then using s= ut + 1/2at2 u will get your answer

Previous Question

Next Question

Similar questions

Science, 6 hours ago

Inorganic acids also know as...

Social Sciences, 6 hours ago

'increase or decrease in oil prices will affect the price of commodity in the UAE market' comment.

Hindi, 6 hours ago

सौराष्ट्र के एक छोटे-से गाँव में एक अनपढ़, किसान रहता था। उसके पास गुज़ारे के लिए बस थोड़ी-सी ज़मीन थी। एक बार भयंकर बरसात हुई, जिसमें उसका एक बैल मर गया। दुखी होकर वह अपने दोस्तों और सेठों के पास पैसे माँगने गया, लेकिन किसी ने उसकी सहायता नहीं की। फ़सल बोने का मौसम आरंभ हो गया था। किसानों के मन खुशी से झूम उठे थे और सबने फ़सल बोनी शुरू कर दी। लेकिन वह किसान क्या करता? उसके पास बैल ही नहीं थे। वह...

Hindi, 12 hours ago

what is nuclear bomb...

Social Sciences, 12 hours ago

What does democracy mean? * 1.Equal right to vote 2.Unequal right to vote 3.Discrimination 4.None of these ...

Physics, 7 months ago

1. Let the period of revolution of a planet at a distance R from a star be T. Prove that if it was at a distance of 2R from the star, its period of revolution will be 8 T.

Math, 7 months ago

let ABCD be a quadrilateral in which P Q R S are the midpoints of Ab BC CD and DA respectively. prove that PR & QS bisect each other. pls guys pls help me out... pls give an brief explanation also... I'm really bad at maths so I need your help pls...

Science, 7 months ago

what is light ???? explain it please Thankyou...