Tiwari Academy Discussion

Asked: February 5, 2021In: Class-11-Physics

A body of mass 0.5 kg travels in straight line with velocity V = ax³/² where a = 5 m–½ s⁻¹. The work done by the net force during it’s displacement from x = 0 to x = 2m is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

A bomb of mass 30 kg at rest explodes in to two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms⁻¹. The kinetic energy of the other mass is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

How much water a pump of 2 KW can raise in one minute to a height of 10 m? (g = 10 ms)?

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

A ball is dropped from height ‘h’ on the ground where co-efficient of restitution is ‘e’. After one bounce the maximum height is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

A position dependent force, F = 7 – 2x + 3x² N acts on a small body of mass 2 kg and displaces it from x = 0 to x = 5 m. The work done in joule is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

Two bodies with kinetic energies in the ratio 4 : 1 are moving with equal linear momentum. The ratio of their masses is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

During inelastic collision between two bodies, which of the following quantities always remain conserved

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

300 J of work is done in sliding a 2 kg block up on inclined plane of height 10 m. Work done against friction is (g = 10 ms–²)

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, it’s maximum speed will be

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Aagam

Asked: February 5, 2021In: Class-11-Physics

A particle is projected at an angle of 60° to the horizontal with a kinetic energy E. The kinetic energy at the highest point is

NCERT Solutions for Class 11 Science Chapter 4 Important Board Questions Work energy and power NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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