As part of the lab at university, Nadia shoots a projectile straight up into the air with an initial speed of 13.2 m/s. Neglecting air resistance, what would Nadia find is the projectile's displacement from it's starting point after 1.24 s has elapsed? a) 12.4 m b) 23.5 m c) 51.8 m d) 8.83 m e) 9.80 m
PART A) As part of the lab at university, Nadia shoots a projectile straight up into the air with an initial speed of 13.2 m/s. Neglecting air resistance, what would Nadia find is the projectile's displacement from it's starting point after 1.24 s has elapsed?
a) 12.4 m
b) 23.5 m
c) 51.8 m
d) 8.83 m
e) 9.80 m
PART B) Nadia whirls a stone that is attached to a 1.90 m string in 2 different ways. In the first, Nadia forms a circle parallel to the ground. In the second case, Nadia forms a vertical circle. In the vertical case, Nadia observes the tension is 25% greater when travelling at the same speed. What is the speed at which the stone travels?
a) 16.2 m/s
b) 10.5 m/s
c) 13.4 m/s
d) 8.6 m/s
e) no answer is correct
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