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BidishaKashayap1333
@bidishakashayap1333
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Joined: Oct 11, 2021
Last seen: Jul 27, 2023
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Topics: 2174 / Replies: 0
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Topic
A stone resting on the ground has a gravitational force of 20 N acting on it. What is the weight of the stone? What is its mass?
4 years ago
Forum
Gravitation
Replies: 0
Views: 85
Topic
A force of 20 N acts upon a body whose weight is 9.8 N. What is the mass of the body and how much is its acceleration?
4 years ago
Forum
Gravitation
Replies: 0
Views: 179
Topic
Can a body have mass but no weight? Give reasons for your answer.
4 years ago
Forum
Gravitation
Replies: 0
Views: 89
Topic
Write the differences between mass and weight of an object.
4 years ago
Forum
Gravitation
Replies: 0
Views: 235
Topic
When a cricket ball is thrown vertically upwards, it reaches a maximum height of 5 metres. (a) What was the initial speed of the ball? (b) How much time is taken by the ball to reach the highest point?
4 years ago
Forum
Gravitation
Replies: 0
Views: 232
Topic
A stone is thrown vertically upwards with a speed of 20 m/s. How high will it go before it begins to fall?
4 years ago
Forum
Gravitation
Replies: 0
Views: 247
Topic
A stone is dropped from a height of 20 m. (i) How long will it take to reach the ground? (ii) What will be its speed when it hits the ground?
4 years ago
Forum
Gravitation
Replies: 0
Views: 226
Topic
A stone falls from a building and reaches the ground 2.5 seconds later. How high is the building?
4 years ago
Forum
Gravitation
Replies: 0
Views: 223
Topic
A piece of stone is thrown vertically upwards. It reaches the maximum height in 3 seconds.
4 years ago
Forum
Gravitation
Replies: 0
Views: 205
Topic
The mass of sun is 2 x 10^30 kg and the mass of earth is 6 x 10^24. If the average distance between the sun and the earth be 1.5 x 10^8 km
4 years ago
Forum
Gravitation
Replies: 0
Views: 164
Topic
What is the force of gravity on a body of mass 150 kg lying on the surface of the earth?
4 years ago
Forum
Gravitation
Replies: 0
Views: 476
Topic
Calculate the force of gravitation between two objects of masses 50 kg and 120 kg respectively kept at a distance of 10 m from one another.
4 years ago
Forum
Gravitation
Replies: 0
Views: 302
Topic
Explain why, if a stone held in our hand is released, it falls towards the earth.
4 years ago
Forum
Gravitation
Replies: 0
Views: 214
Topic
State two applications of universal law of gravitation.
4 years ago
Forum
Gravitation
Replies: 0
Views: 125
Topic
What happens to the gravitational force between two objects when the distance between them is: (i) doubled? (ii) halved?
4 years ago
Forum
Gravitation
Replies: 0
Views: 286
Topic
Describe how the gravitational force between two objects depends on the distance between them.
4 years ago
Forum
Gravitation
Replies: 0
Views: 316
Topic
Give reason for the following: The force of gravitation between two cricket balls is extremely small but that between a cricket ball and the earth is extremely large.
4 years ago
Forum
Gravitation
Replies: 0
Views: 85
Topic
Can we apply Newton’s third law to the gravitational force? Explain your answer.
4 years ago
Forum
Gravitation
Replies: 0
Views: 66
Topic
What do you mean by the term ‘free fall’? (b) During a free fall, will heavier objects accelerate more than lighter ones?
4 years ago
Forum
Gravitation
Replies: 0
Views: 203
Topic
Explain what is meant by the equation: g = G x M/R^2 where the symbols have their usual meanings.
4 years ago
Forum
Gravitation
Replies: 0
Views: 271
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