A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 20.0 m>s. A 1.0-kg stone is thrown from the basket with an initial velocity of 15.0 m>s per - pendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 5.00 s after it was thrown. Assume that the balloon continues its downward descent with the same constant speed of 20.0 m>s. (a) How high is the balloon when the rock is thrown

Question

Lightning

Physics

24 November, 14:13

A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 20.0 m>s. A 1.0-kg stone is thrown from the basket with an initial velocity of 15.0 m>s per - pendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 5.00 s after it was thrown. Assume that the balloon continues its downward descent with the same constant speed of 20.0 m>s. (a) How high is the balloon when the rock is thrown

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Answers (2)

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Quinn Cameron · Answer 1

Given:

Mass = 124 kg

U = - 20 m/s

t = 5 s

Using the equation of motion,

S = U*t + 1/2 * gt^2

S = - 20 * 5 - 1/2 * 9.8 * 5^2

= - 222.5 m

= 222.5 m (the sign is showing the direction of the motion from its origin)

Sydnee Mejia · Answer 2

a) 242.5 m

Explanation:

Given:

Vi = 20m/s

t = 5 seconds

According to kinematic equation, the displacement is given by:

d = Vit + 1/2 gt^2

d = 20 * 6) + (1/2 * 9.8 * 5^2)

d = 120 + 122.5

d = 242.5m