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90°
Gravitation force of sun.
ω = 2π/12=π/6 rad h⁻¹
No.
Null vector
√(a^2+g2) where g = acceleration due to gravity.
Radial inward.
height is maximum at θ = 90 Range is maximum at θ = 45.
height is maximum at θ = 90
Range is maximum at θ = 45.
What is the angle between(A+B) and (A-B) ?
90°
90°
See lessWhat is the source of centripetal acceleration for earth to go round the sun ?
Gravitation force of sun.
Gravitation force of sun.
See lessWhat is the angular velocity of the hour hand of a clock ?
ω = 2π/12=π/6 rad h⁻¹
ω = 2π/12=π/6 rad h⁻¹
See lessDoes a vector quantity depends upon frame of reference chosen ?
No.
No.
See lessWhat is the average value of acceleration vector in uniform circular motion over one cycle ?
Null vector
Null vector
See lessA train is moving on a straight track with acceleration a. A passenger drops a stone. What is the acceleration of stone with respect to passenger ?
√(a^2+g2) where g = acceleration due to gravity.
√(a^2+g2) where g = acceleration due to gravity.
See lessA particle is in clockwise uniform circular motion the direction of its acceleration is radially inward. If sense of rotation or particle is anticlockwise then what is the direction of its acceleration ?
Radial inward.
Radial inward.
See lessWhat is the angle between velocity vector and acceleration vector in uniform circular motion ?
90°
90°
See lessWhen does (i) height attained by a projectile maximum ? (ii) horizontal range is maximum ?
height is maximum at θ = 90 Range is maximum at θ = 45.
height is maximum at θ = 90
Range is maximum at θ = 45.
See less