Recent questions in Velocity physics

+200 votes

0 answers

Does the sound velocity change depending on the day?

asked Mar 12, 2023 in Velocity physics by colmac2000

+753 votes

0 answers

What will happen to the kinetic energy when the object is massless and when velocity is zero?

asked Mar 12, 2023 in Velocity physics by john elliott1

+802 votes

0 answers

Does a body have kinetic energy while moving with uniform velocity (without acceleration)?

asked Mar 12, 2023 in Velocity physics by Alan Sausse

+192 votes

0 answers

A ball is projected with a speed of 20m/s at an angle of 30° from the top of a tall tower. What is the time after which its velocity becomes perpendicular to the velocity of projection?

asked Mar 12, 2023 in Velocity physics by decipher

+16 votes

0 answers

A rock is thrown straight down at a velocity of 10 m/s off of a cliff. If the rock reaches a velocity of 40 m/s in seconds, what is its acceleration? How far did it travel in 5 seconds? What is the rocks velocity after 10 seconds of falling?

asked Mar 11, 2023 in Velocity physics by CrystalTwilight

+75 votes

0 answers

How can you show that for a machine overhaul, efficiency=load divided by velocity ratio + resistance?

asked Mar 11, 2023 in Velocity physics by diydoc

+15 votes

0 answers

If a gun is fired straight in to the air will the bullet return to earth at the same speed it left the gun or will it's maximum velocity be slower?

asked Mar 11, 2023 in Velocity physics by nathan (2.9k points)

+1 vote

0 answers

A ball kicked at 45 degrees from horizontal & reached the ground 100m away. What is its initial vertical & horizontal velocity?

asked Mar 11, 2023 in Velocity physics by kurbads

+3 votes

0 answers

An object has a velocity of 2m/s and a kinetic energy of 12 joules. What is its mass?

asked Mar 11, 2023 in Velocity physics by Diane Timber

+4 votes

0 answers

A body is projected with a velocity of 200m/s at an angle of 30 degrees. If the body was projected from the ground, what is its velocity after 16 seconds?

asked Mar 11, 2023 in Velocity physics by JT1989

+178 votes

0 answers

Why do we use average velocity to derive [x=ut+1/2at^2], why not use the actual velocity [instantaneous velocity] at some specific time to find [x], and make the equation [x=ut+at^2]? Doesn't it affect the solution when trying to find exact answers?

asked Mar 11, 2023 in Velocity physics by LunarHorizon

+170 votes

0 answers

In a resonant experiment, first successive positions of resonance occurred at length 15.4m and 48.6m respectively. If the velocity of the sound in air is 3400m/s, what is the frequency of the source?

asked Mar 10, 2023 in Velocity physics by MinorFrog

+123 votes

0 answers

A boy throws a ball vertical upward with a speed of 20m/s. What is the velocity of the ball before it strikes the boy’s hand?

asked Mar 10, 2023 in Velocity physics by lord twang

+1 vote

0 answers

A car starts from rest and has a velocity of 15 kph in 2 seconds. What are the acceleration and distance traveled by the car?

asked Mar 10, 2023 in Velocity physics by SeanQuigley

+121 votes

0 answers

A stone is thrown upward at an angle of 53" above the horizontal. Its maximum height during the trajectory is 24m. What was the initial speed of the stone?

asked Mar 10, 2023 in Velocity physics by cheekypainterman

+212 votes

0 answers

A ball is thrown straight up with an initial speed of 36.12 meters per second. How high in meters will the ball travel up in the air?

asked Mar 10, 2023 in Velocity physics by EightBitMike

+60 votes

0 answers

A punter kicked the football into the air with an upward velocity of 62 ft/s. It's height h in feet after t seconds is given by the function h = -16t^2 + 62t + 2. What is the maximum height the ball reaches? Show solutions,

asked Mar 10, 2023 in Velocity physics by Gravelrash

+4 votes

0 answers

A retarding force reduces the velocity of a 5-kg box sliding across the floor from 8m/sec to 4m/ sec in 1.5 sec. What is the magnitude of this force?

asked Feb 20, 2023 in Velocity physics by Stugadget

+120 votes

0 answers

What is the difference between momentum, velocity, speed, and kinetic energy? How are they related to each other?

asked Feb 20, 2023 in Velocity physics by Liam2000uk

+39 votes

0 answers

Why doesn't the car with greater velocity have more kinetic energy than another car which moves slowly but has a smaller mass and bigger acceleration?

asked Feb 20, 2023 in Velocity physics by Matt edwards

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Recent questions in Velocity physics

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