Consider the following statement: When a rifle is fired horizontally, the bullet leaves the barrel and doesn't drop at all for the first 75 meters of flight. Is this statement true?
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A: The parabolic path is shown below,
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Q: highest point above the ground
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Q: A projectile is fired with an initial velocity of 320m/s at an angle of 15o with the horizontal.…
A:
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A: *We'll answer only the first three sub-parts since the sub-parts to be answered were not specified.…
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Consider the following statement: When a rifle is fired horizontally, the bullet leaves the barrel and doesn't drop at all for the first 75 meters of flight. Is this statement true?
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- Let us consider the fall of a pole vaulter as a projectile once he releases the pole. The pole has a lake of 15 8 feet and once the athlete releases the pole he will find a mattress 2 feet high, 10 feet wide and 16 feet long, which protects him in the fall. If an athlete lets go of the pole when it was 13.7 ft above the ground with a speed of 15.7 ft/s at an angle of 73 degrees. Enter the horizontal distance that the athlete will travel with the indicated conditions, add the units in the resultArcherfish are one of the few fish that prey on land insects and other small animals. They do this by shooting a jet of water from their specialized mouths at an insect resting on a leaf or plant stem above the water (see photo). This often stuns the insect, causing it to fall into the water, where it can be eaten. In the drawing, an archerfish is shooting water toward an unsuspecting horsefly at rest on a blade of marsh grass above the surface of a pond. Use the information in the drawing to calculate how high (h) the horsefly is above the water. The initial velocity of the water (vo) is 3.2 m/s, and assume that the projected water reaches its maximum height above the pond's surface when it strikes the horsefly. to search Varren l'hotographic FOWL A O 1 10 OF 55°F Mostly cloudyWhen the red kangaroo of Australia is moving at full speed, it can bounce at a speed of 8.5 meters per second, at an angle of 45 degrees above horizontal. Assuming the kangaroo is bouncing on level ground, what is the kangaroo’s hang time in the air during a single bounce?
- a cannon shoots an artillery shell with an velocity of 400 meter/second at an indirect fire angle of 60 degrees. where does it land if friction effects and windage are neglected?A plate slides off the edge of a kitchen table with an initial velocity of 3 m/s horizontally. The height of the tabletop above the ground is 4.0 m. (neglect the air resistance) a) what is the range of the projectile? b) What is the velocity (including both the horizontal and vertical components) of the plate just before it hits the ground and shatters into multiple pieces?a quarterback throws a ball with a velocity of 50ft/s at an angle 40 above the horizontal towards an open receiver who is 30yd away. The pass is released 5.0 ft above the ground. Assume the receiver is stationary and will catch the ball if it reaches him. Will it be a complete pass? If not will it fall short or ''fly'' to the receiver?
- A man stands on the roof of a 15.0-m-tall building and throwsa rock with a speed of 30.0 m/s at an angle of 33.0 above the horizontal.Ignore air resistance. Calculate the maximum height above the roof that the rock reachesA man stands on the roof of a 15.0-m-tall building and throwsa rock with a speed of 30.0 m/s at an angle of 33.0 above the horizontal.Ignore air resistance. Calculate the speed of the rock just before it strikes the groundTwo identical balls are thrown vertically upward. The second ball is thrown with an initial speed that is twice that of the first ball. How does the maximum height of the two balls compare? The maximum height of the second ball is four times that of the first ball. The maximum height of the second ball is two times that of the first ball. The maximum height of the second ball is eight times that of the first ball. The maximum height of the second ball is 1.41 times that of the first ball. The maximum heights of the two balls are equal.
- A ball is dropped onto a horizontal floor. It reaches a height of 144 cm on the first bounce, and 81 cm on the second bounce. What is the coefficient of restitution between the ball and the floor, and the height it attains on the third bounce?Try dropping simultaneously two sticks into a flowing river, one near the edge of the river and one near the middle. Which one travels faster? Why?A projectile is fired at ?0=394.0 m/s at an angle of ?=72.0∘, with respect to the horizontal. Assume that air friction will shorten the range by 33.1%. How far will the projectile travel in the horizontal direction, ??