Question

The distance covered by a body in time (5.0 + 0.6) s is (50.0 + 0.5) m. Error in calculation of its speed is
0 + 1.3
0 +1.2
O + 0.5
0+ 0.11​

Answer 1

Answer:

if it is help full tell me

Explanation:

∵ speed = distance covered by body/time taken

Given , distance = (40 ± 0.4) m

time = (5 ± 0.6) m

∴ speed = distance/time = 40/5 = 8m/s

Now, for finding error in speed , use formula

∆v/v = ∆s/s + ∆t/t

For Percentage error ,

% in speed = 100(∆s/s + ∆t/t)

Here, v, s , t are represented speed , distance and time respectively.

Given,

∆s = 0.4m , ∆t = 0.6sec , s = 40m and t = 5 sec

∴ % in speed = 100(0.4/40 + 0.6/5)

= 100(0.01 + 0.12)

=100 × 0.13

= 13 %