363477
A spherical body of mass \(100\,g\) is dropped from a height of \(10\,m\) from the ground. After hitting the ground, the body rebounds to a height of \(5\,\,m\) . The impulse of force imparted by the ground to the body is given by (given \(g = 9.8\;\,m/{s^2}\) )
363478
When a ball of mass \( = 5\,kg\) hits a bat with a velocity \( = 3\,m/s\) in positive direction and it moves back with a velocity \( = 4\,m/s\), find the impulse in SI units
1 \(5\)
2 \(15\)
3 \(25\)
4 \(35\)
Explanation:
Impulse \(=\) change in linear momentum \( = {p_r} - {p_i}\) \( = - 5 \times 4 - 5 \times 3\) \( = - 35\,N - s\) \(\therefore \) Magnitude of impulse in SI units \( = 35\)
PHXI05:LAWS OF MOTION
363479
Assertion : Impulsive force is large and acts for a short time. Reason : Finite change in momentum should be produced by the force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Impulse \(=F(\Delta t)=\Delta p\) An impulsive force is indeed large and acts for a short time. The reason correctly explains that a finite change in momentum should be produced by the force. So correct option is (1)
363477
A spherical body of mass \(100\,g\) is dropped from a height of \(10\,m\) from the ground. After hitting the ground, the body rebounds to a height of \(5\,\,m\) . The impulse of force imparted by the ground to the body is given by (given \(g = 9.8\;\,m/{s^2}\) )
363478
When a ball of mass \( = 5\,kg\) hits a bat with a velocity \( = 3\,m/s\) in positive direction and it moves back with a velocity \( = 4\,m/s\), find the impulse in SI units
1 \(5\)
2 \(15\)
3 \(25\)
4 \(35\)
Explanation:
Impulse \(=\) change in linear momentum \( = {p_r} - {p_i}\) \( = - 5 \times 4 - 5 \times 3\) \( = - 35\,N - s\) \(\therefore \) Magnitude of impulse in SI units \( = 35\)
PHXI05:LAWS OF MOTION
363479
Assertion : Impulsive force is large and acts for a short time. Reason : Finite change in momentum should be produced by the force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Impulse \(=F(\Delta t)=\Delta p\) An impulsive force is indeed large and acts for a short time. The reason correctly explains that a finite change in momentum should be produced by the force. So correct option is (1)
363477
A spherical body of mass \(100\,g\) is dropped from a height of \(10\,m\) from the ground. After hitting the ground, the body rebounds to a height of \(5\,\,m\) . The impulse of force imparted by the ground to the body is given by (given \(g = 9.8\;\,m/{s^2}\) )
363478
When a ball of mass \( = 5\,kg\) hits a bat with a velocity \( = 3\,m/s\) in positive direction and it moves back with a velocity \( = 4\,m/s\), find the impulse in SI units
1 \(5\)
2 \(15\)
3 \(25\)
4 \(35\)
Explanation:
Impulse \(=\) change in linear momentum \( = {p_r} - {p_i}\) \( = - 5 \times 4 - 5 \times 3\) \( = - 35\,N - s\) \(\therefore \) Magnitude of impulse in SI units \( = 35\)
PHXI05:LAWS OF MOTION
363479
Assertion : Impulsive force is large and acts for a short time. Reason : Finite change in momentum should be produced by the force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Impulse \(=F(\Delta t)=\Delta p\) An impulsive force is indeed large and acts for a short time. The reason correctly explains that a finite change in momentum should be produced by the force. So correct option is (1)
NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXI05:LAWS OF MOTION
363476
When the speed of a moving body is doubled
1 Its acceleration is doubled
2 Its momentum is doubled
3 Its kinetic energy is doubled
4 Its potential energy is doubled
Explanation:
Conceptual Question
PHXI05:LAWS OF MOTION
363477
A spherical body of mass \(100\,g\) is dropped from a height of \(10\,m\) from the ground. After hitting the ground, the body rebounds to a height of \(5\,\,m\) . The impulse of force imparted by the ground to the body is given by (given \(g = 9.8\;\,m/{s^2}\) )
363478
When a ball of mass \( = 5\,kg\) hits a bat with a velocity \( = 3\,m/s\) in positive direction and it moves back with a velocity \( = 4\,m/s\), find the impulse in SI units
1 \(5\)
2 \(15\)
3 \(25\)
4 \(35\)
Explanation:
Impulse \(=\) change in linear momentum \( = {p_r} - {p_i}\) \( = - 5 \times 4 - 5 \times 3\) \( = - 35\,N - s\) \(\therefore \) Magnitude of impulse in SI units \( = 35\)
PHXI05:LAWS OF MOTION
363479
Assertion : Impulsive force is large and acts for a short time. Reason : Finite change in momentum should be produced by the force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Impulse \(=F(\Delta t)=\Delta p\) An impulsive force is indeed large and acts for a short time. The reason correctly explains that a finite change in momentum should be produced by the force. So correct option is (1)
