Describe the motion of an object in free fall Different spheres are each sent into free fall from the same height off the ground. Which of these spheres would have the greatest acceleration in free fall after leaving your hand?   a. a 14 kg sphere dropped from rest into free fall   b. a 12 kg sphere thrown upwards into free fall with an initial velocity of 60 m/s   c. a 2 kg sphere thrown upwards into free fall with an initial velocity of 10 m/s   d. an 8 kg sphere thrown downwards into free fall with an initial velocity of 40 m/s   e. none of these

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A: The gravitational force on the baseball is, -Fg j^   The velocity with which the ball is thrown is v…

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A: Given: The mass of rock is 0.5 kg.  The initial speed given to it is 3 m/s. The height of the cliff…

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A:

Q: Your friend describes the motion of a car using this phrase: “The car rounded the turn at a constant…

A: The car rounded the turn at a constant velocity of 45 miles per hour.” Statement is wrong.

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A:

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A: As per the given data, Initial velocity (u) = 2.4 m/s; Distance covered (s) = 19 m; Time (t) = 3.2…

Q: A 50.0-g Super Ball travel- ing at 25.0 m/s bounces off -3- Figure P2.20 a brick wall and rebounds…

A:

Q: Q3 Suppose that a rocket which starts from rest fall in a constant gravitational field. At the…

A: Given :Speed  vo

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A:

Q: 9. Your friends (apparently, they decided to join you after all) dares you to jump on the rare white…

A: (9)   The given values are, u=0v=14.2 m/st=7.2 s

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A: The average velocity over the round trip of an object that is launched straight up from the fround…

Q: A jeepney and a train are moving together along parallel paths at 30.0 m/s, with the jeepney…

A: Solution:→Case 1     For the jeepney     Initial speed, u = 30 m/s     Acceleration, a = -2.5 m/s2…

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A: First we need to find time taken by rocket A and Rocket B then time difference between these two…

Q: 3. A student constructs the apparatus below. ball solid surface A ball, initially at rest, reaches a…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 20 m/s Time (t) = 10 s Required: The…

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A:

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A: Since there are multiple subparts being posted we are answering the first three subparts. (a) The…

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A: Given, a object is thrown up from fixed position.

Q: When cleaning out his impressive collection of chalkboard chalk, . JohN finds a creepy looking bug…

A: Given:bug's inital speed, vi = 1.5 m/sTime at which the vacuum is switched on, t= 3sde-acceleration…

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A: Given values: initial velocity u = -73.5 m/s time t  = 2.2 s

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A:

Q: Q9. i) A ball is thrown vertically up with an initial velocity of 28 m/s. (a) How high will it reach…

A:

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A:

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A: Given  acceleration(a)=4 ft/sec2 length of chute(s)=60 ft time taken to reach bottom (t)=5 sec…

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A: The total distance covered =80 miles=128.748Km Total displacement =0 m=0 km (the train after a round…

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A: (a)Using kinematic equation,

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A: Part a the magnitude and direction of the net force on the rock.Part bthe magnitude and direction…

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A: Initial speed of car, Vo = 35 mph Final speed of car, V = 70 mph Time taken to reach V from Vo, t =…

Q: A 50.0-g Super Ball travel- ing at 25.0 m/s bounces off -3- Figure P2.20 a brick wall and rebounds…

A:

Q: Q6/A weather balloon is floating at a constant height above Earth when it releases a pack of…

A: In the question, the part (b) is incomplete, so here we give the complete explanation of part (a)…

Q: A truck, stolen by Dora the Explorer is initially stopped 10.0 m from the base of a building. Peppa…

A: Initial height (h) = 22 m final height (h') = 3 m

Q: 4. A student is attempting to hit a target 4 m from the edge of a desk that is 1.4 m tall. The…

A: Calculate the time, t, taken by the marble to hit the target. H=uyt+12gt21.4 m=0×t+12×9.8…

Q: 1. A student attaches a string to a wheeled cart and pulls with constant force on the string. There…

A: Correct answer is it moves at constant speed.

Q: Q2 The man stands 18 m from the wall and throws a ball at it with the speed of 15 m/s as shown in…

A: a) velocity in x direction is always constant  So, just before to hit point B  Vx = 15×Cos30° = 13…

Q: From 1946 through 1958, Col. John Stapp headed the U.S. Air Force Aero Medical Laboratory's studies…

A: Consider the initial speed of the sled be u, the final speed of the sled be v, the distance covered…

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Q: A helicopter carrying Dr. Doofenshmirtz takes off with a constant  upward acceleration of [5.0…

A: Given that,    The acceleration of the helicopter a=5m/s2    After 10s  engine being shift off…

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A:

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A:

Q: Two rockets are launched at a fireworks display. Rocket A is launched with an initial velocity t, =…

A: Initial velocity of rocket A = Initial velocity of rocket B = 100 msHeight where the explosion has…

Q: distant planet throw a rock straight upward

A: When an astronaut throws a rocket upward it undergo a constant acceleration motion that means motion…

Q: rocket-powered

A: slope of velocity time graph represents acceleration

Q: she was injured when the lunch box from the front of the bus came flying towards her after the…

A: The option A is correct