Answer:
a) 6,455 L
b) V(t) = (18/3) * t^(1.5)
Step-by-step explanation:
Part a
Integrating the given relation from t = 0 to t= 105 mins

Part b

Answer:
(-5,4)
Step-by-step explanation:
The rocket will reach the ground after 4 seconds
Step-by-step explanation:
- Step 1: Find the time when the water rocket reaches the ground.
When the water rocket reaches the ground, the height, h will be zero.
⇒ h = 20 - 5(t - 2)²
⇒ 0 = 20 - 5(t - 2)²
⇒ 5 (t - 2)² = 20
⇒ (t - 2)² = 4
⇒ t - 2 = √4 = 2
∴ t = 2 + 2 = 4 seconds
Answer:
38.5
Step-by-step explanation:
7/2 = 3.5. 11×3.5= 38.5
The answer to your question is 4.08