Question

The displacement of body s= 200+_5 meter and t=20+_0.2 sec find percentage error in calculation of velocity
​

Answer 1

Answer:

we know that,

velocity=displacement/time

therefore , velocity=200/20=10m/s

Now,

∆v/v=∆s/s+∆t/t

∆v/10=5/200+0.2/20

∆v/10=5+2/200

∆v=70/200

∆v=7/20=0.35

therefore, percentage error in velocity =10+-0.35

=3.5%