The engine of a train can impart a maximum acceleration of 1 ms^−2 and the brakes can give a maximum retardation of 3 ms^−2. The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

Question:

The engine of a train can impart a maximum acceleration of 1 ms⁻² and the brakes can give a maximum retardation of 3 ms⁻². The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

Options :

(a) 108 s
(b) 191 s
(c) 56.6 s
(d) time is fixed

Answer :

Answer Steps :

step 1

step 2

Video Tutorial

An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

A 1 µF condenser is charged to 50 V. The charging battery is then disconnected and a 10 mH coil is connected across the capacitor so that LC oscillations occur. What is the maximum current in the coil ? Assume that the circuit contains no resistance. The capacity of a pure capacitor is 1 F. In d.c. circuits, its effective resistance will be

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

Online Support

Related Questions

An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

Explore Our Courses

Access To All Courses from VgyanHub

Popular Courses

Company

Need Some Help?