Two balls are thrown from the edge of a rooftop with the same speed, but one is thrown upward while the other is thrown horizontally. Which of the following statements accurately describes the speed and velocity of the balls when they hit the ground, assuming air resistance can be ignored? a)The final speeds of the balls will be equal but their final velocities will differ b)The final velocities of the balls will be equal but their final speeds will differ. c)Both the final speeds and final velocities of the balls will be equal. d) Neither the final speeds nor the final velocities of the balls will be equal.

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A: Since all the balls are at same height so the potential energy of all the balls are same

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A:

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A: Given: Projection angle θ=35o Initial velocity of object 1 v1 = 10 m/s. Initial velocity of object 2…

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A: We need to solve for certain parameters in the given figure for the projectile as shown.

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A: Velocities,  v1 = 9.4 m/sv2 = 13 m/s Time, t = 2.10 s Time when a becomes constant, t = 2.50 s

Q: Two trains, one traveling at 20 m/s , and the other at 40m/s , are headed toward one another along a…

A:

Q: 2. In a physics experiment, you drop a ball from the 3rd floor of front atrium stairwell, to the…

A: The given data are: h=12.8 mu=0 m/s Here, h and u are the height and initial velocity.

Q: 8) At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m.…

A: Initial velocity of first ball (u1) = -8 msInitial height of first ball (H) = 40 m Initial velocity…

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A: Given initial velocity u = 20 m/s  Displacement S = - 50 m   At highest point velocity v = 0

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A: Concept

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A: given,

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

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A: Given data: Initial velocity (u) = 7.2 m/s [N] Time taken (Δt) = 2.0 s Final velocity (v) = 7.2 m/s…

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A:

Q: Car A is heading east at 30 m/s and Car B is heading west at 22 m/s. Suddenly, as they approach each…

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Q: Find the maximum height of this projectile provided with this equation

A: At maximum height, the velocity is zero. that is v=0 here the velocity is, v2=vo2+gke-2ky-yo-gk

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A: Given, height 1= 25 m initial velocity= 0 m/s height 2 = ?final velocity = 12.5 m/s

Q: A student throws a stone horizontally from a height h = 100m. If the stone strikes the ground at x =…

A: The given data are: h=100 mx=80 mg=10 m/s2

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.