Lebron throw an apple vertically upward from the roof of a tall building.The apple leaves his hand at a point even with the roof railing withan upward speed of 15.0 m/s; the appleis then in free fall.(Ignoreair resistance.) On its way back down, it just misses the railing. Find(a) the apple’s position and velocity 1.00 s and 4.00 s after leaving his hand; (b) the apple’s velocity when it is 5.00 m above the railing; (c) the maximum height reached.

Q: If you deop an object from a height of 1.1 m, it will hit the ground in 0.47s. If you throw a…

A: First object :Initial speed = 0 msTime taken to reach ground = 0.47 seconds Height = 1.1 m Second…

Q: A stone is thrown upward from a cliff at an angle of 35 degrees above the horizont with a speed of…

A: The angle θ between the initial velocity and the y-axis is complementary to α = 35°.

Q: A ball is dropped from a top of a building which is (120+5)m high from the ground. At the same…

A: Initial velocity of ball = 0 msHeight of building (h) = 125 m initial velocity of stone = 31 msLet…

Q: A flower pot falls off a window. The window is 2.0 m from the ground. What is the speed of the…

A:

Q: A clumsy squirrel is perched motionless on a wire when he drops an acorn which takes 1.37 s to reach…

A: (a) Given  t=1.37 s a=g=9.8 m/ s2 initial velocity = u = 0 m/s distance (displacement)=s=ut+(1/2)at2…

Q: A ball is kicked with an initial velocity of 19 m/s in the horizontal direction and 12 m/s in the…

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Q: A ball is kicked at an angle of 35º with the ground. What is the time and initial velocity for the…

A: Given Angle θ = 35° Range R = 25 meters Height H = 2 meters gravitational acceleration g = 9.8 m/s2…

Q: A rock thrown upward returns to its starting point. The trip this takes 7 s. If we choose positive…

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Q: A rock is launched from the origin off a cliff with initial velocity Vox = 1.8 m/s and Voy = 3.2…

A:

Q: rynn, who is standing on her balcony, is surprised by a pigeon and throws a flowerpot up in the air…

A:

Q: A ball A is thrown vertically upward from the top of a 45-m-high building with an initial velocity…

A:

Q: A clumsy squirrel is perched motionless on a wire when he drops an acorn which takes 1.37s to reach…

A: Given The time taken by the acorn to reach the ground is t = 1.37 s. When the acorn is dropped then…

Q: I'm confused on how to start it.

A: Suppose that the acceleration due to gravity is in +ve y-axis. The rock is dropped from the same…

Q: A model rocket is launched straight upward with an initialspeed of 50.0 m/s. It accelerates with a…

A: (a) write the expression for final velocity when the engine stops

Q: A ball is thrown at 60\deg with initial velocity of 10 m/s, it reaches the maximum height and on…

A: Use Time of flight formula of projectile motion

Q: A basketball referee tosess the ball straight up for the starting tip off. At what velocity must a…

A: Given information: The height to be reached by the player (h) = 1.55 m Let the velocity at which the…

Q: A student throws a set of keys vertically upward to her sorority sister who is in a window 4.00m…

A: Given, Horizontal distance d = 4 m Time t = 1.50 s

Q: What is thcy component of the velocitywhen the stone hits the ground? (960m/s 9220 m/ (.490 m/s…

A:

Q: Goku throws a dragon ball vertically upward from the edge of an 88m building and falls to the ground…

A: Recall kinematical equation Yf=Yi+Vt-1/2gt2Vf=Vi-gt

Q: A ball was thrown from the ground at an angle of 28o with the horizontal with an initial speed of 19…

A:

Q: uestion An object starts moving from rest with constant acceleration of 14 m/s, what is its final…

A:

Q: A tennis player tosses a tennis ball straight up and then catches it after 2.11 s at the same height…

A: Given, Total time taken by the ball to return to the player's hand =2.11 s. It is also given that…

Q: A dolphin in an aquatic show jumps straight up out of the water at a velocity of 12.5 m/s. How high…

A: (given)   Initial velocity of dolphin (vi) = 12.5 m/s    Final velocity of dolphin (vf) = 0 m/s  (…

Q: A golfer hits a golf ball so that it lands at a distance of 120 m. If s/he hits the ball so that it…

A:

Q: A stone falls from rest from the top of a high cliff. A second stone is thrown down from the same…

A:

Q: 2 Aalis thrown from the top of a building with a horizontal velocity of 20 m/s. It hits level ground…

A: Answer:-  Given  Speed (V) = 20 m/s  Distance (S) = 80 m  Time (t) = ?  We know that  V = S/t  Time…

Q: B) A cheetah falls from a tall building. 1 second later, a heroic antelope launches with an initial…

A: Solution: Given: g = gravitational acceleration = 9.81 m/s2 dt = time difference between falling of…

Q: An Olympic long jumper is capable of jumping 8.0 m. Assuming his horizontal speed is 9 m/s as he…

A: Given = distance= d= 8m  Speed horizontal= 9 m/s  Time= t= ??

Q: ebron throw an apple vertically upward from the roof of a tall building.The apple leaves his hand…

A:

Q: A stone thrown off a bridge 40 m above a river has an initial velocity 7.6 m/s at an angle of 42…

A: The height of the bridge is 40 m. The initial velocity of the ball is 7.6 m/s. The angle with the…

Q: You throw a rock straight up from the edge of a cliff. It leavesyour hand at time t = 0 moving at…

A: y=ut+0.5gt2 -4.00 m=12.0 m/st+0.5-9.8 m/s2t2-4=12t-4.9t24.9t2-12t-4=0

Q: A river has a steady speed of 0.570 m/s. A student swims upstream a distance of 1.00 km and swims…

A: Given :     Steady speed of the river, vR = 0.57 m/s     Distance travelled, d = 1 km      Speed of…

Q: A woman in a hot air balloon drops her GoPro Hero 10 when the balloon is 175 ft above the ground and…

A: Given,  Height s = 175 ft upward velocity = 12 ft/s Using the equation of motion,  s = ut + (1/2)at2…

Q: A Wide Reciever is running along the sideline straight towards the goal at a constant speed. When he…

A:

Q: A person throws a ball upward into the air at an initial velocity of 15.0 m/s. Calcate the time (t)…

A: Here acceleration (a) is g = 9.8m/s^2 (this will be negative since it is going in the opposite…

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.