Question

Percentage error in velocity is 10% find percentage error in kinetic energy

Answer 1

Answer:

% error in KE = 20%

Explanation:

We know that,

$\boxed{Kinetic \ energy=\frac{1}{2}mv^{2} }$

Therefore,

ΔKE / KE = 2 Δv/v

Here,

ΔKE/KE represents % error in finding kinetic energy

Δv/v represents % error in finding velocity

Given that,

Δv/v = 10

Substituting this we get,

ΔKE/KE = 2 × 10

ΔKE/KE = 20%