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junior college 2 | H2 Maths
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Q4) Really appreciate the help given !
Date Posted: 5 years ago
Views: 283
4a)
From the question information, you will deduce that dv/dt = 30 - aV , a is a constant.
When V = 450, dv/dt = -30
Sub V = 450, dv/dt = -30 into the above equation.
-30 = 30 - a(450)
450a = 60
a = 2/15
So, dv/dt = 30 - 2/15 V
- 15 dv/dt = 2V - 450 (shown)
The next part is quite easy
From the question information, you will deduce that dv/dt = 30 - aV , a is a constant.
When V = 450, dv/dt = -30
Sub V = 450, dv/dt = -30 into the above equation.
-30 = 30 - a(450)
450a = 60
a = 2/15
So, dv/dt = 30 - 2/15 V
- 15 dv/dt = 2V - 450 (shown)
The next part is quite easy
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