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The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)?
23
Oct
The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)? The position vector of a particle changes with time according to the relation r→(t)=15t^2iˆ+(4−20t^2)jˆ What is the magnitude of the acceleration (in ms^-2)? October 23, 2020 Category: Chapter 2 - Kinematics , [...]
The stream of a river is flowing with a speed of 2km/h. A swimmer can swim at a speed of 4km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?
23
Oct
The stream of a river is flowing with a speed of 2km/h. A swimmer can swim at a speed of 4km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight? find the values of (2a1+3a2)(3a1-2a2) is Given |a1|=3 and |A2|=5 and |a1+a2|=5 October [...]
Two lenses of power + 12 D and -2 D are combined together. What is their equivalent focal length ?
23
Oct
Two lenses of power + 12 D and -2 D are combined together. What is their equivalent focal length ? Two lenses of power + 12 D and -2 D are combined together. What is their equivalent focal length ? October 23, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]
The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it, the deviation will be :
23
Oct
The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it, the deviation will be : The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it the deviation will be [...]
Assertion (A): In simple harmonic motion, the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 − x^2 (where x is the displacement).
23
Oct
Assertion (A): In simple harmonic motion, the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 − x^2 (where x is the displacement). Assertion (A): In simple harmonic motion the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 [...]
A particle is performing simple harmonic motion with angular frequency 5000 radian /second and amplitude 2 cm and mass of 1 kg. Find the total energy of oscillation.
23
Oct
A particle is performing simple harmonic motion with angular frequency 5000 radian /second and amplitude 2 cm and mass of 1 kg. Find the total energy of oscillation. A particle is performing simple harmonic motion with angular frequency 5000 radian /second and amplitude 2 cm and mass of 1 kg. Find the total energy of [...]
Given |a1|=3 and |A2|=5 and |a1+a2|=5, find the values of (2a1+3a2)(3a1-2a2) is
23
Oct
Given |a1|=3 and |A2|=5 and |a1+a2|=5, find the values of (2a1+3a2)(3a1-2a2) is find the values of (2a1+3a2)(3a1-2a2) is Given |a1|=3 and |A2|=5 and |a1+a2|=5 October 23, 2020 Category: Chapter 2 - Kinematics , JEE Mains Physics 2002-2019 Solved Video Solutions ,
The frequency of oscillations of a mass m connected horizontally by a spring of spring constant k is 4 Hz. When the spring is replaced by two identical spring as shown in figure. Then the effective frequency is.
23
Oct
The frequency of oscillations of a mass m connected horizontally by a spring of spring constant k is 4 Hz. When the spring is replaced by two identical spring as shown in figure. Then the effective frequency is. its velocity is 0.4 ms^−1. The amplitude is This time period of a particle undergoing SHM is [...]
Ship A is sailing towards north-east with velocity vector v = 30 i + 50 j km/hr where i points east and j north. Ship B is at a distance of 80 km east and 150 km north of Ship A and is sailing towards west at 10 km/hr. A will be at minimum distance from B in
23
Oct
Ship A is sailing towards north-east with velocity vector v = 30 i + 50 j km/hr where i points east and j north. Ship B is at a distance of 80 km east and 150 km north of Ship A and is sailing towards west at 10 km/hr. A will be at minimum distance [...]
A mass M is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes simple harmonic motion with time period T. If the mass is increased to ′ m ′ then the time period becomes ( 4/5T ) . The ratio of M/m is
23
Oct
A mass M is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes simple harmonic motion with time period T. If the mass is increased to ′ m ′ then the time period becomes ( 4/5T ) . The ratio of M/m is [...]