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A block is thrown upwards with a kinetic energy 1j. If it goes up to a maximum height of 1m, find the mass of the block.

Posted by Sakshi Sharma 1 year, 10 months ago

CBSE > Class 09 > Science

2 answers

Vaibhav Verma 1 year, 10 months ago

A/Q. Since height is given Therefore we can say that Ek. = Ep. ..... @eq.1 Let's calculate Ep. Ep. = mgh = m × 9.8 m/s^2 × 1m = m × 9.8 m/s^2 From eq 1) Ep. = 1Joule 1= m × 9.8m/s^2 m = 1/ 9.8m/s^2 On furthermore calculations... m= 0.102 kg If required convert mass in kg to g. m = 102 grams. Hope it helps!! Thank you

1Thank You

Dinesh Singh 1 year, 10 months ago

The kinetic energy will be comverted into its potential energy when it reaches its max height, therefore we can equate the potential energy with kinetic energy

Kinetic energy = potential energy

1J = mgh

1 = m × 9.8 ×1

m = 1/9.8

m = 0.1020 kg = 102 gram

2Thank You

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