Question

A projectile is projected horizontally from the top of cliff of height 80 m with a velocity 21.5 m/s. How long will it take to reach the bottom? (g=10m/s2) CORRECT ANSWER ONLY GET BRAINLIEST PLS DONT COPY FROM OTHER BRAINLY POST I POSTED THAT QUESTION I WANT A DIFFERENT WAY OF ANSWER

Answer 1

Explanation:

We have given displacement in y direction as 80 metres

Acceleration in y direction = 10 m/s²

Velocity = 0 in y

80= 1/2 * 10*t²

t=+4 or -4

as time is always positive hence

time is 4 seconds

Answer 2

time = distance/ speed

=80/45.4

=1.76 seconds

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