Question

Hafthor Bjornsen – strongman and part-time actor (The Mountain on Game of Thrones) – recently posted a video of himself competing in an event known as ‘weight over the bar toss’. The goal is to throw a 56 lbs weight as high as possible over a bar – think high jump but with throwing a weight. Hafthor has a natural advantage because he is big (397 lbs) and he is tall (6ft 9in) and is able to release the weight at a vertical height of 2.8 m.

a. On his first attempt the weight had an initial vertical velocity of 7.9 m/s when he released it from his hand. What bar height was he able to clear? (Hint: Factor release height into your answer and clearance height is measured from the ground to the bar.) (2 points)

Answer 1

given
hi = 2.8 m
v = 7.9 m/s

maximum height reached by the weight,

H = hi + v^2/(2*g)

= 2.8 + 7.9^2/(2*9.8)

= 5.98 m