(a) A train of mass $250 \times 10^{3} \mathrm{~kg}$ starts from rest and accelerates uniformly to a speed of $81 \mathrm{~km} / \mathrm{hr}$ in 20 seconds. The total frictional resistance to motion is 20 kN . Determine (i) the maximum power required and (ii) the power required to maintain the speed of $81 \mathrm{~km} / \mathrm{hr}$.
Explanation
To find the maximum power required, we use the formula P_max = F * v. The power required to maintain the speed is also F * v, but with the frictional resistance only.
⬆ Related Topic
📘 Syllabus
View KERALA UNIVERSITY Class 1 Syllabus →
📝 Practice Questions
Practice Previous Year Questions →
🤖 Practice with AI
Generate Practice Question Paper →
📚 Related Concepts
- (a) Explain the principle and working of (i) Zener diode (ii) LED
- (a) (i) Compare sequential and combinational logic circuits. (ii) With the help of truth table, explain JK flip flop
- (a) With neat circuit diagram and wave forms, Explain the working of a full wave rectifier.
- (a) Draw the block diagram of function generator and explain its working.
- (a) Draw the block diagram of super heterodyne receiver and explain its working.