If vectors A=cos wti + sin wtj and B= cos wt/2 i + sin wt/2 j are functions of time,
If vectors A=cos wti + sin wtj and B= cos wt/2 i + sin wt/2 j are functions of time,…
6 years ago
Motion in Plane
The position vector of a particle R as a function of time is given by
The position vector of a particle R as a function of time is given by R=4sin(2πt)i + 4 cos (2πt)…
6 years ago
A ship A is moving westwards with a speed of 10 km/h and a ship B 100 km
A ship A is moving westwards with a speed of 10 km/h and a ship B 100 km South of…
6 years ago
The angle between the vectors (i+j) and (j+k) is
The angle between the vectors (i+j) and (j+k) is Options (a) 90⁰ (b) 60⁰ (c) 30⁰ (d) 45⁰ Correct Answer:…
6 years ago
For a given velocity, a projectile has the same range R for two angles of projection.
For a given velocity, a projectile has the same range R for two angles of projection. If t₁ and t₂…
6 years ago
A proton of mass 1.6×10⁻²⁷ kg goes round in a circular orbit of radius 0.10 m under
A proton of mass 1.6x10⁻²⁷ kg goes round in a circular orbit of radius 0.10 m under a centripetal force…
6 years ago
In a uniform circular motion,
In a uniform circular motion, Options (a) Velocity and acceleration remain constant (b) Kinetic energy remains constant (c) Speed and…
6 years ago
The circular motion of a particle with constant speed is
The circular motion of a particle with constant speed is Options (a) Periodic but not simple harmonic (b) Simple harmonic…
6 years ago
The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t²
The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t² metre. The angle of projection…
6 years ago
The coefficient of friction between the tyres and the road is 0.25. The maximum speed
The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which a car can…
6 years ago