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Jih
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Hi guys, I'm really stuck on these questions please help me find the answers!
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
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mqb2766
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#2
(Original post by Jih)
Hi guys, I'm really stuck on these questions please help me find the answers!
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
Hi guys, I'm really stuck on these questions please help me find the answers!
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
What have you tried, what problems are you having?
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RogerOxon
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#3
(Original post by Jih)
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
During WW1, the German army bombarded Paris with "Big Bertha." Assume Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [ 45 above the horizontal ]
a) how long was each shell airborne, if the launch point was at the same level as the landing point? -answer is 1.6 x 10^2 s
b) Determine the maximum horizontal range of each shell -answer is 1.2 x 10^5 km
c) Determine the maximum height of each shell -answer is 31 km
b) Use the horizontal component of its velocity, which doesn't change, and the time of flight from a.
c) SUVAT on the vertical component of its velocity with t=half the time of flight, or v=0.
Last edited by RogerOxon; 2 years ago
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RogerOxon
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(Original post by Jih)
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
An astronaut on the Moon where gravity is 1.6 m/s^2 strikes a ball giving it a velocity of 32 m/s [ 35 degrees above the Moon's horizontal ] The ball lands in a crater floor that is 15 m below the level where it was struck. Determine
a) the maximum height of the ball -answer : 1.1 x 10^2 m
b) time of flight -answer is 24s
c) horizontal range -answer is6.2 x 10^2 m
b) You have s (the crater floor), u and a, and want t
c) Horizontal speed is constant, so use the answer from b.
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