contestada

A tiger leaps horizontally from a 6.1 m high rock with a speed of 3.9 m/s. How far from the base of the rock will she land?

Respuesta :

v o = 3.9 m/s
x = v o * t
h = g t² / 2
6.1 m = 9.81 m/s² * t² /2
t² = 12.1 / 9.81
t = √12.1/9.81
t = 1.11 s
x = 3.9 m/s * 1.11 s
x = 4.329 m
A tiger will land 4.329 m from the base of the rock.
The horizontal distance (s)= ut+[tex] \frac{1}{2} g t^{2} [/tex]
Time taken by the ball to hit the ground,
h=[tex] \frac{1}{2} g t^{2} [/tex]
h=60
60= [tex] \frac{1}{2}*10* t^{2} [/tex]
60=5[tex] t^{2} [/tex]
[tex] t^{2}= \frac{60}{5} [/tex]
t=[tex] \sqrt{12} [/tex]
Replacing for distance covered
H=ut+[tex] \frac{1}{2} g t^{2} [/tex]
H=3.9m/s*[tex] \sqrt{12} + \frac{1}{2} *10* \sqrt{12}^{2} [/tex]
H=13.51+60
=73.51 m
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