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Palak Sureka
Subject: Science
, asked on 30/9/17
A car starts from rest and moves along with constant acceleration 5m/s2 for 8 seconds. It then continues with constant velocity, what distance will the car cover in 12 seconds since it started from the rest?
Answer
1
Zainab
Subject: Science
, asked on 30/9/17
An athlete fails to stop themselves on a crossing line?why
Answer
1
Iffat Ruhani
Subject: Science
, asked on 30/9/17
When an object is dropped from a height, initial velocity is zero and final velicity is maximum. But shouldn't the final velocity be zero, too, as the body ultimately stops?
Answer
3
Rishabh
Subject: Science
, asked on 30/9/17
Q19. Solution
19.
Two adjacent students stand on stationary skateboards, face each other, and push apart. The skateboarder on the left weighs 65 kg, the one on the right is 85 kg. If the lighter skateboarder moves at 3.2 m/s, determine the speed and direction of the heavier skateboarder.
Answer
1
Mihika .
Subject: Science
, asked on 29/9/17
Please answer to 15th question and please answer to this particular question only.please answer in detail.thank you
Q.15) Which of the following has more inertia & Why?
a) A rubber ball and a stone of the same size.
b) A bicycle and a train.
Answer
1
Rishabh
Subject: Science
, asked on 28/9/17
Q8. Solution and how with proof
8. Teacher ask ram about a incident that is:
A large bus and a van, both moving with a velocity of magnitude v, have a collision and bith the behicles stop after the collision. If the time of the collision is 1 sec then,
a) Which vehicle experiences smallerv force of impact?
b) What values do ram infer from this
c) Which vehicle experiences the smaller momentum change?
Answer
1
Piyush
Subject: Science
, asked on 28/9/17
please give a working model of 'law of conservation of linear momentum'.
Answer
1
Suvam
Subject: Science
, asked on 28/9/17
find the change in the momentum of a car weighing 1500kg when its speed increases from 36kmph to 75kmph .
Answer
1
Mihika .
Subject: Science
, asked on 26/9/17
Please answer to 24th question and please answer to this particular question only.thank you
Q.24. When a card placed above a glass having a coin placed on it is flicked with push, the coin fall into glass. Why?
a) State the law involved in this case.
b) Give another example that shows this law?
Answer
2
Mihika .
Subject: Science
, asked on 26/9/17
Please answer to 16th question and please answer to this particular question only.thank you
Q.16. Describe any three effects of force with the help of one example each.
Answer
1
Mihika .
Subject: Science
, asked on 26/9/17
Please answer to 15th question and please answer to this particular question only.thank you
Q.15. Which of the following has more inertia & Why?
a) A rubber ball and a stone of the same size.
b) A bicycle and a train.
Answer
1
Mihika .
Subject: Science
, asked on 25/9/17
Please answer for 11 question and please answer to this particular question only.
Q.11. Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
Answer
2
Vedika
Subject: Science
, asked on 22/9/17
why does an athelete run from a distance before jump
Answer
1
R. Lasyapriya
Subject: Science
, asked on 22/9/17
Answer 9 th question and thankyou for all the experts and students who answeredthis question please answer
9.
Two bodies each of mass 1 kg are moving in a straight line but opposite in direction with same velocity of
2
m
s
-
1
. They collide with each other and stick to each other after collision. What is the common velocity after collision of these bodies.
Answer
2
R. Lasyapriya
Subject: Science
, asked on 21/9/17
Answer 8 urgent
Answer
2
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19. Two adjacent students stand on stationary skateboards, face each other, and push apart. The skateboarder on the left weighs 65 kg, the one on the right is 85 kg. If the lighter skateboarder moves at 3.2 m/s, determine the speed and direction of the heavier skateboarder.
Q.15) Which of the following has more inertia & Why?
a) A rubber ball and a stone of the same size.
b) A bicycle and a train.
8. Teacher ask ram about a incident that is:
A large bus and a van, both moving with a velocity of magnitude v, have a collision and bith the behicles stop after the collision. If the time of the collision is 1 sec then,
a) Which vehicle experiences smallerv force of impact?
b) What values do ram infer from this
c) Which vehicle experiences the smaller momentum change?
Q.24. When a card placed above a glass having a coin placed on it is flicked with push, the coin fall into glass. Why?
a) State the law involved in this case.
b) Give another example that shows this law?
Q.16. Describe any three effects of force with the help of one example each.
Q.15. Which of the following has more inertia & Why?
a) A rubber ball and a stone of the same size.
b) A bicycle and a train.
Q.11. Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?
9. Two bodies each of mass 1 kg are moving in a straight line but opposite in direction with same velocity of . They collide with each other and stick to each other after collision. What is the common velocity after collision of these bodies.