Related InterviewSolutions

• Assume that the earth goes round the sun in a circular orbit with a constant speed of 30 km/s.(a) The average velocity of the earth from 1st Jan, 90 to 30th June, 90 is zero.(b) The average acceleration during the above period is 60 km/s2.(c) The average speed from 1st Jan, 90 to 31st Dec, 90 is zero.(d) The instantaneous acceleration of the earth points towards the sun.
• The position vector of a particle in a circular motion about the origin sweeps out equal area in equal time.Its(a) velocity remains constant(b) speed remains constant(c) acceleration remains constant(d) tangential acceleration remains constant
• The position vector of a particle in a circular motion about the origin sweeps out equal area in equal time. Its(a) velocity remains constant(b) speed remains constant(c) acceleration remains constant(d) tangential acceleration remains constant.
• The safety speed of a vehicle on a curve horizontal road is(A) μrg(B) \(\sqrt{μrg}\)(C) μr2g(D) μ/(rg)2
• A vehicle is moving along a circular road which is inclined to the horizontal at 10°. The maximum velocity with which it can move safely is 36 km/hr. Calculate the radius of the circular road.
• Give the formulae of centripetal force.
• Give the formula of inclination of banked road.
• Formula of height of inclined road ?
• If a particle moves with uniform speed then its tangential acceleration will be(A) \(\frac{v^2}{r}\) (B) zero (C) rω2 (D) infinite
• If ωE and ωH are the angular velocities of the earth rotating about its own axis and the hour hand of the clock respectively, then(A) ωE = \(\frac{1}{4}\)ωH(B) ωE = 2 ωH(C) ωE = ωH(D) ωE = \(\frac{1}{2}\)ωE