Inkit

Jadhav Singh

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

A hiker stands on the edge of a clift 490 m above the ground and throws a stone horizontally with an initial speed of 15 ms⁻¹. Neglecting air resistance, find the time taken by the stone to reach the ground and the speed with which it hits the ground. (g = 9.8 ms⁻²)

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Numericals Marks Questions

Jadhav Singh

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

A bullet fired at an angle of 30° with the horizontal hits the ground 3 km away. By adjusting the angle of projection, can one hope to hit the target 5 km away ? Assume that the muzzle speed to be fixed and neglect air resistance.

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Numericals Marks Questions

Jadhav Singh

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

The displacement x of a particle varies with time as x = 4t² – 15t + 25. Find the position, velocity and acceleration of the particle at t = 0.

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Numericals Marks Questions

Jadhav Singh

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

On a 60 km straight road, a bus travels the first 30 km with a uniform speed of 30 kmh⁻¹. How fast must the bus travel the next 30 km so as to have average speed of 40 kmh⁻¹ for the entire trip ?

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Numericals Marks Questions

Jadhav Singh

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

When the angle between two vectors of equal magnitudes is 2π/3, prove that the magnitude of the resultant is equal to either

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Numericals Marks Questions

Jadhav Singh

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

The V-t graphs of two objects make angle 30° and 60° with the time axis. Find the ratio of their accelerations.

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marks Questions

Jadhav Singh

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

At what angle do the two forces (P + Q) and (P – Q) act so that the resultant is √(3P²+Q²).

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marks Questions

Jadhav Singh

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

The acceleration of a particle in ms⁻² is given by a = 3t² + 2t + 2, where time t is in second. If the particle starts with a velocity v = 2 ms⁻¹ at t = 0, then find the velocity at the end of 2 s.

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marks Questions

Tanoj

Asked: February 10, 2021In: Class-11-Physics

Is the acceleration of a particle in circular motion not always towards the centre. Explain.

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Two Marks Questions

Tanoj

Asked: February 10, 2021In: Class-11-Physics

A gunman always keep his gun slightly tilted above the line of sight while shooting. Why ?

NCERT Solutions for Class 11 Science Kinematic 2 Important Board Questions Kinematic NCERT Books for Session 2022-2023 CBSE Board and UP Board Two Marks Questions

Inkit

A hiker stands on the edge of a clift 490 m above the ground and throws a stone horizontally with an initial speed of 15 ms⁻¹. Neglecting air resistance, find the time taken by the stone to reach the ground and the speed with which it hits the ground. (g = 9.8 ms⁻²)

A bullet fired at an angle of 30° with the horizontal hits the ground 3 km away. By adjusting the angle of projection, can one hope to hit the target 5 km away ? Assume that the muzzle speed to be fixed and neglect air resistance.

The displacement x of a particle varies with time as x = 4t² – 15t + 25. Find the position, velocity and acceleration of the particle at t = 0.

On a 60 km straight road, a bus travels the first 30 km with a uniform speed of 30 kmh⁻¹. How fast must the bus travel the next 30 km so as to have average speed of 40 kmh⁻¹ for the entire trip ?

When the angle between two vectors of equal magnitudes is 2π/3, prove that the magnitude of the resultant is equal to either

The V-t graphs of two objects make angle 30° and 60° with the time axis. Find the ratio of their accelerations.

At what angle do the two forces (P + Q) and (P – Q) act so that the resultant is √(3P²+Q²).

The acceleration of a particle in ms⁻² is given by a = 3t² + 2t + 2, where time t is in second. If the particle starts with a velocity v = 2 ms⁻¹ at t = 0, then find the velocity at the end of 2 s.

Is the acceleration of a particle in circular motion not always towards the centre. Explain.

A gunman always keep his gun slightly tilted above the line of sight while shooting. Why ?

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