Question

Can someone help me with this question please help me

Answer 1

1928

1978

Explanation:answer given

Hence proved hope this help u mark me brainliest

Answer 2

Explanation:

a) When The car goes 18m/s in 1898 then-----

18 m goes in 1 second

1 m '" " " " " " 1/18 second

1600 m goes in 1/18×1600=88.8 m/s

b) do yourself,it's absolutely like the question 'a'

C) minimum rocket speed is 4900m/s

so I think none of them had rocket engine