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## Question:

A coin released at rest from the top of a tower hits the ground after falling 1.5 s. What is the speed of the coin as it hits the ground?

## Answer:

The **speed** of coin as it hits the **ground** is **14.7 m/s**.

**Given data:**

**Initial speed** of coin is, .

**Time** taken to fall on ground is, .

Use **first kinematic equation** of motion as,

here, **g **is the **gravitational acceleration**.

Solving as,

Thus, the **speed** of coin as it hits the **ground** is **14.7 m/s**.

Learn more about kinematic equation of motion here:

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