Question

a body thrown vertically upwards from grounf with inital vel 40m/s then time taken by it to reach max hieght is?

Answer 1

Answer:

t = 4.08 s

Explanation:

if the body is thrown upward, it has negative gravity. Knowing through the International System that the earth's gravity is 9.8 m/s²

Data:

• Vo = 40 m/s
• g = -9.8 m/s²
• t = ?

Use formula:

• $\boxed{\bold{t=\frac{-(V_{0})}{g}}}$

Replace and solve:

• $\boxed{\bold{t=\frac{-(40\frac{m}{s})}{-9.8\frac{m}{s^{2}}}}}$

• $\boxed{\boxed{\bold{t=4.08\ s}}}$

Time taken by it to reach max height is 4.08 seconds.

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