A canno baii is fired at a velocity of 25 m.s. Calculate: 2. the maximum height that it reaches. 2.2 the time elapsed until it returns to the same horizontal level as the top end of the cannon barrel, from where it was fired. 2.3 at which height above the ground the cannonball has an upwards velocity of 10 m.s (assume the barrel is 1 m above the ground).

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Chapter3: Two-dimensional Kinematics
Section: Chapter Questions
Problem 45PE: In 2007, Michael Carter (U.S.) set a world record in the shot put with a throw of 24.77 m. What was...
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estion 2
A canno bail is fired at a velocity of 25 m.s. Calculate:
2. the maximum height that it reaches.
2.2 the time elapsed until it returns to the same horizontal level as the top end of
the cannon barrel, from where it was fired.
2.3 at which height above the ground the cannonball has an upwards velocity of
10 m.s (assume the barrel is 1 m above the ground).
-1
Question 3
A hot-air baiioon travels upwards at a constant velocity. At a height of 80 m above
the ground, someone drops his cell phone from the balloon. It hits the ground
after 5 seconds. Ignore the effect of air resistance.
3.1 Calculate the velocity at which the balloon travels upwards.
3.2 Calculate the maximum height above the ground reached by the cell phone.
3.3 How long after the cell phone falls, does it pass the point from where it
started to fall?
3.4 How iong after the cell phone has been dropped, does the distance between
the balioon and the cell phone equal 20 m?
Transcribed Image Text:estion 2 A canno bail is fired at a velocity of 25 m.s. Calculate: 2. the maximum height that it reaches. 2.2 the time elapsed until it returns to the same horizontal level as the top end of the cannon barrel, from where it was fired. 2.3 at which height above the ground the cannonball has an upwards velocity of 10 m.s (assume the barrel is 1 m above the ground). -1 Question 3 A hot-air baiioon travels upwards at a constant velocity. At a height of 80 m above the ground, someone drops his cell phone from the balloon. It hits the ground after 5 seconds. Ignore the effect of air resistance. 3.1 Calculate the velocity at which the balloon travels upwards. 3.2 Calculate the maximum height above the ground reached by the cell phone. 3.3 How long after the cell phone falls, does it pass the point from where it started to fall? 3.4 How iong after the cell phone has been dropped, does the distance between the balioon and the cell phone equal 20 m?
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