The cheetah in Exercise 18. Use a step size of t = 1 to estimate the position

Question:

The cheetah in Exercise 18. Use a step size of Δt = 1 to estimate the position at t = 5.
Apply Euler's method with the given value of Δt to the differential equation. Compare the approximate result with the exact result from the earlier problem.
Exercise 18
A cheetah is standing 1 m from the edge of the jungle. It starts sprinting across the savanna to attack a zebra that is 200 m from the edge of the jungle. After t seconds, the velocity of the cheetah is et m/s.