A body is thrown vertically upwards with a speed of 20 m/s. What is the maximum height reached by the body? (Take g = 10 m/s²)

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Q: A body is thrown vertically upwards with a speed of 20 m/s. What is the maximum height reached by the body? (Take g = 10 m/s²)

Solution: Using the formula h = (u²)/(2g), where u = 20 m/s and g = 10 m/s², we get h = (20²)/(2*10) = 400/20 = 20 m.

Steps: 8

Step 1: Identify the initial speed (u) of the body. In this case, u = 20 m/s.
Step 2: Identify the acceleration due to gravity (g). Here, g = 10 m/s².
Step 3: Use the formula for maximum height (h) reached by the body, which is h = (u²)/(2g).
Step 4: Substitute the values into the formula: h = (20²)/(2*10).
Step 5: Calculate 20², which is 400.
Step 6: Calculate 2*10, which is 20.
Step 7: Divide 400 by 20 to find h: h = 400/20.
Step 8: Calculate the result: h = 20 m.