A key falls from a bridge that is 38 m above the water. It falls directly...
A key falls from a bridge that is 38 m above the water. It falls
directly into a model boat, moving with constant velocity, that was
11 m from the point of impact when the key was released. What is
the speed of the boat?
___ m/s
Homework Answers
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A key falls from a bridge that is 38 m above the water. It falls
directly...
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water....
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water. At the moment the key is released a model boat is 10.5 m away from the bridge and moving towards the bridge with constant velocity. If the key falls directly into the model boat, calculate the Velocity of the boat. Answer: 11. [2pt] Arie is aimed honuntaily a target located 345 m away. The ballet hits the target 25 cm below the aim point....
(10 pts) A water balloon is dropped vertically from a height of 44 m above the...
(10 pts) A water balloon is dropped vertically from a height of 44 m above the sidewalk. It lands on the feet of a person who is walking along the sidewalk at a constant velocity When the balloon is released at t 0, the person is i2 m from the point of impact. Ignoring air resistance effects, determine the walking speed of the person. You should calculate that the time to impact is approx. 3 s.]
7. A ball is thrown vertically downward from the edge of a bridge 24.0 m high...
7. A ball is thrown vertically downward from the edge of a bridge 24.0 m high with an initial speed of 12.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water. 3.75 8. A photographer in a helicopter ascending vertically at a constant rate of 1.2 m/s accidentally drops m above the ground. (a) How long will it take the camera to reach the ground?...
A 10.0 kg ball is released from rest in an ocean. As it falls, the water...
A 10.0 kg ball is released from rest in an ocean. As it falls, the water applies a resistive force R = −bv, where v is its velocity. At a time 6.14 s after its release, the ball is moving at half of its terminal speed. (Ignore any buoyant force.) (a) What is the ball's terminal speed (in m/s)? m/s (b) At what time after release (in s) is its speed three-fourths of its terminal speed? s (c) How far...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
A stone is dropped into a river from a bridge 41.2 m above the water. Another...
A stone is dropped into a river from a bridge 41.2 m above the water. Another stone is thrown vertically down 1.35 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?
A stone is dropped into a river from a bridge 47.8 m above the water. Another...
A stone is dropped into a river from a bridge 47.8 m above the water. Another stone is thrown vertically down 1.60 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?
A boat can travel 2.30 m/s in still water. If the boat point its prow directly...
A boat can travel 2.30 m/s in still water. If the boat point its prow directly across a stream whose current is 1.50 m/s. What is the magnitude of the velocity of the boat relative to the shore? v_y = m/s What is the angle of the velocity of the boat relative to the share? theta = What will be the position of the boat, relative to its point of origin, after 7.00 s? Assume that the positive x and...
2 A stone is dropped into a river from a bridge 42.2 m above the water....
2
A stone is dropped into a river from a bridge 42.2 m above the water. Another stone is thrown vertically down 1.70 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone? Number Units the tolerance is +/-29
0 out of 10 points on 1 What is the speed ot the boat? A person...
0 out of 10 points on 1 What is the speed ot the boat? A person is standing at rest on a brdge that is 50 metres above the water. They drop their celiphone. Remember that drop means the initial velocity -0 s. t falrs directy onto a boat that was moving with a constant horizontal velocity that was 12 metres from the point of impact (where the cell phone hits the boat) when the cellphone was dropped Ignore the...
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water. At the moment the key is released a model boat is 10.5 m away from the bridge and moving towards the bridge with constant velocity. If the key falls directly into the model boat, calculate the Velocity of the boat. Answer: 11. [2pt] Arie is aimed honuntaily a target located 345 m away. The ballet hits the target 25 cm below the aim point....
(10 pts) A water balloon is dropped vertically from a height of 44 m above the sidewalk. It lands on the feet of a person who is walking along the sidewalk at a constant velocity When the balloon is released at t 0, the person is i2 m from the point of impact. Ignoring air resistance effects, determine the walking speed of the person. You should calculate that the time to impact is approx. 3 s.]
7. A ball is thrown vertically downward from the edge of a bridge 24.0 m high with an initial speed of 12.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water. 3.75 8. A photographer in a helicopter ascending vertically at a constant rate of 1.2 m/s accidentally drops m above the ground. (a) How long will it take the camera to reach the ground?...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
A boat can travel 2.30 m/s in still water. If the boat point its prow directly across a stream whose current is 1.50 m/s. What is the magnitude of the velocity of the boat relative to the shore? v_y = m/s What is the angle of the velocity of the boat relative to the share? theta = What will be the position of the boat, relative to its point of origin, after 7.00 s? Assume that the positive x and...
2
A stone is dropped into a river from a bridge 42.2 m above the water. Another stone is thrown vertically down 1.70 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone? Number Units the tolerance is +/-29
0 out of 10 points on 1 What is the speed ot the boat? A person is standing at rest on a brdge that is 50 metres above the water. They drop their celiphone. Remember that drop means the initial velocity -0 s. t falrs directy onto a boat that was moving with a constant horizontal velocity that was 12 metres from the point of impact (where the cell phone hits the boat) when the cellphone was dropped Ignore the...
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