214 Answered Questions for the topic Velocity

Velocity Physics Radius Weight

03/07/16

Solving for Centripetal Force using a Free Body Diagram
A 70 kg student is riding a roller coaster and is at the top of the vertical loop. The loop has a radius of 16 m, and the car's velocity at the top is 12 m/s. What is the student's apparent weight... more
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Velocity Physics Mass Radius

03/07/16

Solving centripetal force using an equation
A roller coaster car of mass of 300 kg is going through a loop at a velocity of 15 m/s. If the loop has a radius of 12 m, what centripetal force is the roller coaster experiencing?   SHOW WORK
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Velocity

02/29/16

Projectile and velocity
The range of a projectile fired at an angle theta with the horizontal and with an initial velocity of v0 feet per second is r = 1/32v0^2 sin 2theta, where r is measured in feet. Determine the... more
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Velocity Math Physics Radius

02/25/16

What am I doing wrong in this problem?
The County Fair Swing carries the mass of riders and chairs in a circular path in a horizontal plane while suspended by cables or chains. Let's assume that:Each chair with riders is supported by a... more
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02/17/16

Help explaining physics
Question: As the speed of a bicycle moving along a level horizontal surface changes from 2 m/s to 4 m/s, the magnitude of the bicycle's:   Multiple Choice: a. total energy remains the same b.... more
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01/26/16

Kinematics
A particle is projected upwards from the top of a tower. Treat point of projection as origin & upwardsas positive. Consider three point on its path such that at (s represents displacement from... more
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01/21/16

Quadratic Equation
"Ms. Powers can kick a soccer ball up into the air with an initial velocity of 44 feet per second. Using the formula h=vt-16t^2, where h=height above the ground, v=initial velocity, and t=time in... more
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Velocity Math Physics City

01/20/16

How far are you from your starting point?
A city has streets laid out in a square grid, with each block 135 m long.  If you drive north for three blocks, then west for two blocks, how far are you from your starting point?
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01/19/16

How far from and on which side of Okemos road did it start?
A car travels along a straight north-south road. A coordinate system is established on the road, with x increasing to the north. The car ends up 14 mi south of the intersection with Okemos Road. If... more
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Velocity Physics Mass Momentum

01/07/16

Momentum in a collision.
How is momentum conserved in a collision?   Explain using words, calculations, or both as well as physics terms.
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Velocity Physics Mass Momentum

12/02/15

Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s.
Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s. Draw a diagram showing the carts before and after... more
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11/22/15

spped and velocity
A vehicle landing on Mars has a vertical velocity toward the surface of 5.5km and a horizontal velicity of 3.5m/s a) what is the speed of the vehicle along the decent path b) what is the... more
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11/18/15

What is the car's stopping distance if the speed is doubled?
A car traveling at 10 m/s hits the brakes and comes to a stop in 12 m. What is the car's stopping distance if the speed is doubled?
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11/18/15

What happens to the cart's kinetic energy when the mass/velocity of the cart triples?
A cart with a mass of M is traveling at a velocity of V.   a) What happens to the cart's kinetic energy when the mass of the cart triples? b) What happens to the cart's kinetic energy when the... more
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Velocity Math Vector Magnitude

11/18/15

Vectors applied math
You swim at 3km/h directly across a stream with a current of 5km/h. Your actual velocity is the vector sum of the streams velocity snd your swimming velocity. Find the magnitude of your actual... more
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11/07/15

A toy rocket is launched vertically with an initial velocity of 128 feet/second. What is it's maximum height.
h= -16t2 + 128t It is a 4 part question. 1. How long will it take to return to the ground 2. How long will it take to reach 112 ft. 3. What is it's maximum height 4 How long will it take to... more
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10/30/15

Car have mass m,its engine delivers power P.what's the minimum time in which car can be accelerated from rest to speed v
A car of mass m has an engine which can deliver power P.The minimum time in which car can be accelerated from rest to a speed v is(a) (mv^2)/2P(b) Pmv^2(c) 2Pmv^2(d) (mv^2)P/2
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Velocity Physics Coordinates

10/28/15

Physics Help?
An artillery shell is fired with an initial velocity of 300 m/s at 55° above the horizontal. To clear an avalanche, it explodes on a mountainside 42.0s after firing. Whar are the x- and... more
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10/15/15

Physics Help Please?
Benjamin fires an arrow from a castle wall 10m high. It leaves the bow with a speed of 40m/s directed 37° above the horizontal.   a) Find the initial velocity components   b) Find the maximum... more
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Velocity

10/14/15

Carl and Mike start a 3 mile race at the same time. Mike ran the race at 6 miles per hour and finishes the race 7.5 minutes before Carl, how fast does Carl run?
what is Carl's velocity in m/h
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10/11/15

Add these vectors or subtract them?
  A jet plane set to be on a velocity and course of 840 knots, 44 degrees south of west encounters wind. The flight tower shows that their actual velocity and path is 840 knots, 49 degrees south... more
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Velocity Physics Seconds

10/05/15

How far did the baseball player throw the ball?
A baseball player throws a baseball with a horizontal velocity of 100m/s west. The ball hits the ground 0.5 seconds later.How far did the baseball player throw the ball?   SHOW WORK PLEASE
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Velocity Physics Height

10/05/15

How tall is the baseball player?
A baseball player throws a baseball with a horizontal velocity of 100m/s west. The ball hits the ground 0.5 seconds later. How tall is the baseball player?   SHOW WORK PLEASE
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Velocity Physics Seconds

10/05/15

With what vertical velocity does the ball land?
A baseball player throws a baseball with a horizontal velocity of 100m/s west. The ball hits the ground 0.5 seconds later.With what vertical velocity does the ball land?   SHOW WORK PLEASE
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Velocity Physics Height

10/05/15

How far does the jumper move horizontally?
A long jumper achieves a height of 1.5 meters when her initial horizontal velocity is 5m/s. How far does the jumper move horizontally? (Hint: She reaches a height of 1.5 meters halfway through her... more
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