A canal barge of mass III is traveling at speed V i when it shuts off its engines. The drag force D with the water is given by D = bv, (a) Find an expression for the time required for the barge to reduce its speed to V f . (b) Evaluate the time numerically for a 970-kg barge traveling initially at 32 km/h to re- duce its speed to 8.3 km/h; the value of b is 68 N' s/m.

Question

Jitender Pal · Answer

Round off to two significant figures, t = 19 s Therefore, the time taken by the barge to move from initial velocity of 32 km / h to final velocity of under the action of the drag force is 19 s .

Thank you for registering.

Register Now and Win Upto 25% Scholorship for a Full Academic Year !

Enter Your Details

Registration done!

1 Answers

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Mechanics

ASK QUESTION

Answer and earn gift vouchers

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Complete Self Study Package designed by Industry Leading Experts

Live 1-1 coding classes to unleash the Creator in your Child

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Register Now & Win Upto 25% Scholorship