Question

Some students do a lab experiment to find g the accelerartion due to gravity. The value they came up with experimentally was 11.25m/s2. The actual value for g is 9.81 m/s2. What is their percent error?

a
3.9 %
b
14.7 %
c
1.44 %
d
-6 %

Answer 1

`(11.25 - 9.81)/(9.81) * 100 = 14.7\%`
The answer is (B)

Answer 2

b. 14.7%

Step-by-step explanation:

Experimental value of gravitational acceleration “g” = 11.25 m/s^2

Actual value of gravitational acceleration “g” = 9.81 m/s^2

Percentage error = ((Experimental value – Actual value)/Actual value) × 100

Percentage error = ((11.25 – 9.81)/9.81) × 100

Percentage error = 14.7%

Hence, the percentage error in the value of “g” will be 14.7%.