Jack drops a stone from rest off of the top of a bridge that is 24.8 m above the ground. After the stone falls 6.6 m, Jill throws a second stone straight down. Both rocks hit the water at the exact same time. What was the initial velocity of Jills rock? Assume upward is the positive direction and downward is the negative. (indicate the direction with the sign of your answer.)

Q: A stone is thrown vertically upward with an initial speed of 20 m/s. When it returns, it fall into a…

A: The initial velocity of the stone, v = 20 m/s The initial position of the stone can be considered…

Q: A motion detector is mounted on the floor, pointing straight up. A baseball is held 8 feet above the…

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Q: You attach a meter stick to an oak tree, such that the top of the meter stick is 2.87 meters above…

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Q: A ball rolls off a table that is 1.17 m high with a horizontal velocity of 1.34 m/s. What are the…

A: H = 1.17 m Vx = 1.34 m/s Using equation of motion in vertical direction Vy2 - Uy2 = 2 (g)H Vy2 - 0…

Q: A squirrel drops a pecan from a branch 9.7 meters above the ground. How long does it take for the…

A: Given data: The height of the branch from ground is h=9.7 m.   Part-(1) The expression for the…

Q: ver drops a tennis ball from a certain height above a concrete floor. The ball's tion from the…

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Q: A physics book slides off a horizontal table top with a speed of 1.20 m/s. It strikes the floor…

A: Given data:  Initial horizontal velocity (ux) = 1.20 m/s Initial vertical velocity (uy) = 0 m/s Time…

Q: A punter kicks the football off his foot at an angle of 56.8 degrees above the horizontal. The ball…

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Q: A soccer ball is kicked with an initial speed of 10.5 m/s. After 0.720s it is at its highest point.…

A: Given: The intial velocity of the ball is 10.5 m/s. The time taken by the ball to reach the maximum…

Q: After being released form the ground, a golf ball reached its maximum height in 14.37 s. And 6.96 s…

A: Given:    Time required to reach maximum height , t1 = 14.37 s Time to reach the fence after maximum…

Q: A cargo plane is moving with a horizontal velocity of v= +248 m/s at a height of y = 1070 m above…

A: In the given question, Height of the plane (h) = 1070m Initial velocity ( vx ) in the horizontal…

Q: A ball is thrown up with an initial velocity of 50 m/s. Draw a picture with vector arrows. How many…

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Q: A diver jumps off the diving board at 2.5 m/s. Assume the diving board is 2.5 m above the water…

A: Given :     Initial velocity of diver , u = 2.5 m/s     distance of diving board from water surface,…

Q: A pen is dropped vertically 6 ft above the ground, 1 second later, someone grab the pen before the…

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Q: Calculate the height (in m) of a cliff if it takes 2.32 s for a rock to hit the ground when it is…

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Q: An explosive is used to launch a projectile straight up with a velocity of 23.7 m/s. The object…

A: Given data The initial velocity of the projectile is u = 23.7 m/s. The time taken by the object to…

Q: A student begins at rest and then walks north at a speed of v1 = 0.55 m/s. The student then turns…

A: Given: Speed v1 = 0.55 m/s along north direction Speed v2 = 0.53 m/s along south direction Taking…

Q: Consider the game of baseball. A pitcher throws a ball to the catcher, with a speed of 86 miles per…

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Q: A student fires a cannonball vertically upwards with a speed of 38.0m/s. Determine all unknowns and…

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Q: A ball is projected upward from the ground level with an initial velocity of 96 feet per second.…

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Q: A rock is thrown vertically upwards from ground level at t = Os. At t = 2.7 s it passes the top of a…

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Q: A student who aspires to ace his quiz in Phys134 went to a wishing well. He dropped his first…

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Q: A child throws a snowball straight toward a tree with a horizontal velocity of 18 m/s. The tree is…

A: The child throws the snowball with an initial horizontal velocity of 18 m/s, towards a tree which is…

Q: A person on the top of a roof of a building (100 m) drops a ball. After 2s passed, a person who…

A: Given: The height of the building is 100 m. The person on the ground throws another ball after 2 s…

Q: Questlon: Your younger brother is playing with slingshot and trylng to shoot a rock straight up at…

A: The initial velocity of the ball shot vertically upwards taking upwards to be the positive y…

Q: A stone is thrown vertically upward with an initial speed of 20 m/s. When it returns, it fall into a…

A:

Q: The figure below shows a ball thrown from the top of a cliff at a downward angle of θ= 35.9° . It…

A: Given  D = 7.64 m is horizontal distance  Time taken, T = 1.11 sec  Downward angle, θ= 35.9°   If U…

Q: A ball is dropped from rest from the top of the building. What is the velocity of the ball 3.0…

A: A ball is dropped, therefore the initial velocity is 0m/s. u=0m/s Assuming body is undergoing…

Q: Jack drops a stone from rest off of the top of a bridge that is 22.4 m above the ground. After the…

A: Given  Initial velocity of first rock u1 = 0 m/s Initial velocity of second rock =u2 Total distance…

Q: 4. A stone is dropped into the water from a bridge 44 m above the water. Another stone is thrown…

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Q: Lydia fired a model rocket vertically upward into the air. Granh A

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Q: A man in a glider leaped off a cliff with an initial velocity of 3.45 m/s. He landed on the ground…

A: initial horizontal speed = 3.45 m/s horizontal distance = 450 m   A) Using equation of motion in…

Q: A small rock is thrown vertically upward with a speed of 29.0 m/s from the edge of the roof of a…

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Q: You are on the roof of a Physics Building, 51 m above the ground. Your physics professor, who is…

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Q: Wile E. Coyote is chasing the roadrunner and falls off a cliff. It takes Wile E Coyote 7 long…

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Q: Erica throws a lawn dart upward from a height of 1 meter above the ground. The lawn dart reaches a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A ball is tossed straight up from the ground. If it reaches the height of your bedroom window (2.0…

A: v GivenA ball is tossed straight up from the ground,The maximum height attain by the ball is, H =…

Q: The vertical displacement (in m) of a plane is  1.5 t2 up; t is the time (in s) after takeoff. The…

A: The vertical displacement is the vertical component of the distance covered by the plan from the…

Q: A ball is thrown upward with an initial velocity of 11 m/s. The approximate value of g = 10 m/s2.…

A: The equation of velocity is v=u+at

Q: rest. The difference between t1 the time it takes the briefcase to hit the ground, and t2, the time…

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Q: A thoughtful person on a bridge reflecting on his awesome Physics class sees a small stone by his…

A: Given  Information The person nudge the stone off the surface. Initial speed of the stone is v0=0…

Q: Bob drops a rock from the top of his apartment building. He noted that it hits the ground traveling…

A: Given information: The final velocity of the rock (v) = 35.0 m/s Let “h” be the height of the…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –