The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 71 km/h.
(a) Determine the cheetah's average acceleration during the short sprint.
___ m/s2
(b) Find its displacement at t = 3.0 s. (Assume the cheetah maintains a constant acceleration throughout the sprint.)
___m
(a) Determine the cheetah's average acceleration during the short sprint.
___ m/s2
(b) Find its displacement at t = 3.0 s. (Assume the cheetah maintains a constant acceleration throughout the sprint.)
___m
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(a).
V² = v² + 2 as
(71/3.6)² = 0² + 2 a(50)
a = 3.88966 m/s²
(b).
s = ½ a t²
s = ½ (3.88966)(3)²
s = 17.50347 meters
V² = v² + 2 as
(71/3.6)² = 0² + 2 a(50)
a = 3.88966 m/s²
(b).
s = ½ a t²
s = ½ (3.88966)(3)²
s = 17.50347 meters