Question 1:
An airplane is flying horizontally with speed 1000km/h. (280m/s) when an engine falls off. Neglecting air resistance, assume it takes 30s for the engine to hit the ground. (a). How high is the airplane?
My answer to question 1:
S = ut+(1/2)at^2
S = 0*t+(1/2)*9.80*(30)^2
S = 4410
The airplane is 4410m high.
Question 2.
A painter's staging is in mechanical equilibrum.The person who is standing in the middle of a stage(between two ropes)weighs 250N downwards, and the tensions in each rope are 200N. What is the weight of the staging?
My answer to question 2:
The weight of the staging
= 200N Upwards+200N Upwards-250N Downwards
= 400N Upwards – 250N Downwards
= 150N Upwards
An airplane is flying horizontally with speed 1000km/h. (280m/s) when an engine falls off. Neglecting air resistance, assume it takes 30s for the engine to hit the ground. (a). How high is the airplane?
My answer to question 1:
S = ut+(1/2)at^2
S = 0*t+(1/2)*9.80*(30)^2
S = 4410
The airplane is 4410m high.
Question 2.
A painter's staging is in mechanical equilibrum.The person who is standing in the middle of a stage(between two ropes)weighs 250N downwards, and the tensions in each rope are 200N. What is the weight of the staging?
My answer to question 2:
The weight of the staging
= 200N Upwards+200N Upwards-250N Downwards
= 400N Upwards – 250N Downwards
= 150N Upwards