An object is dropped from a height of 80 m. Assuming no air resistance, how long will it take to reach the ground? ( 𝑔 = 10 m/s² )
This question involves the application of the second equation of motion to find the time of free fall under gravity.
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Using s = 1/2gt² , where s= 80m and g = 10 m/s ²:
80 = 1/2(10)t²
80 = 5t²
t² = 16
t = 4s
This question related to Chapter 2 physics Class 11th NCERT. From the Chapter 2. Motion in Straight Line. Give answer according to your understanding.
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