Question

Superman can fly at speeds almost equal to $2.6\times {10}^7$ m/s. A supersonic jet on the planet Krypton can fly at a maximum speed of 130000 m/s.

• A. Superman flies 200 times faster than the jet
• B. The jet flies 200 times faster than Superman
• C. Superman flies 2000 times faster than the jet
• D. The jet flies 2000 times faster than Superman

Answer 1

The correct option is A

Superman flies 200 times faster than the jet

Given, speed of Superman = $2.6\times {10}^7$
Speed of supersonic jet = $130000=1.3\times {10}^5$

$\frac{Speedofsuperman}{Maximumspeedofsupersonicjet}=\frac{2.6\times {10}^7}{1.3\times {10}^5}$

= $2\times {10}^2$

= 200
Hence, Superman flies 200 times faster than the jet.