Question

Relativistic effects such as time dilation and length contraction are present for cars and airplanes. Why do these effects seem strange to us?

Short answer

They're unusual since the relativistic effect can only be observed at very high speeds (high enough to be comparable to the speed of light).

Step-by-step solution

Define Special Relativity

The special theory of relativity, sometimes known as special relativity, is a physical theory that describes how space and time interact. Theoretically, this is known as STR theory.

Explanation

Cars and aircraft have a small impact since their speeds are so slow in comparison to the speed of light.

Since the value of $\mathrm{v}$ for planes and cars are of the order$300\mathrm{m}/\mathrm{s}$, and also the speed of light is: $\mathrm{c}=300\mathrm{x}10^8\mathrm{m}/\mathrm{s}$.

Therefore, it is seen that:

$\frac{{\mathrm{v}}^2}{{\mathrm{c}}^2}\approx 1\mathrm{x}10^{-16}$.

Which means that the value of$\gamma$is almost$1$.

Therefore, they are said to be strange due to the relativistic effect is observable only it has a very high speed (which means they are high enough to be comparable to the speed of light).