Answer:
v = 16.52 m/s.
Explanation:
Initially, an object moves through 10 m in 2 min.
Then, he moves 2000 m at a speed of 1200 m/s. Let tâ is the time during for this duration.
[tex]t=\dfrac{d}{s}\\\\t=\dfrac{2000\ m}{1200\ s}\\\\t=1.67\ s[/tex]
So, average speed,
[tex]v=\dfrac{d_1+d_2}{t_1+t_2}\\\\v=\dfrac{10+2000}{120+1.67}\\\\v=16.52\ m/s[/tex]
So, its average speed is 16.52 m/s.
