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A 250 gram ball travels at a velocity of 40 ms. It momentum is?
Wiki User
∙ 14y ago
Momentum = (mass) times (velocity) = 0.25 x 40 = 10 kg-m/sec
Wiki User
∙ 14y ago
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Two balls of masses 500gram and 200 gram are moving at valocities 4m s and 8m s respectively on collision they stick together find the velocity af the system after collision?
The idea is to use conservation of momentum. Calculate the total momentum before the collission, add it up, then calculate the combined velocity after the collision, based on the momentum.
A 41.8 gram golf ball is dropped from 1.41 meters and then bounces back to the exact same height what is the force in newtons exerted on the ball in the 0.012 seconds it was in contact with the floor?
Answer:1. ball falls from a height of 1.41m, so what is its momentum when it hits the floor? Well, assuming the ball falls on earth:mom = m.vacceleration = 9.8m/s/swhere m=mass of ball; V=velocity of ball when it hits the groundHow do we know what velocity it travels at when it hits the ground? We use uniform acceleration formulas (because the force due to grav is constant):v=u+a.t; S=u.t+(1/2).a.t^2; V^2=u^2 + 2.a.swhere s=displacment; u=inital velocity; v=final velocty; a=acceleration; t=timeSo which one applies? what do we know about the ball, and what do we want to find out?we know balls mass, inital velocity, which we'll say is 0. We know the acceleration is 9.8m/s/s.We want to know it final velocity, so we'll use V^2 = u^2 + 2.a.su=0soV^2 = 2.a.sthereforeV^2 = 2.(9.8m/s/s).(1.41m) = 27.636soV= root(27.636) = 5.26m/s (3.s.f)we know v, now we can work out momentum:v.m = (5.26m/s).(41.8/1000)kg (notice I have to put it in kg, not grams)0.2197kgm/sNow, this is the momentum the ball has at the moment it touches the ground, and because we know that the force exerted is equal to the rate of change of momentum and we know this change takes 0.012seconds to occur, and that the ball moves with the same velocty in the opposite direction:total change in mom = 2.(0.2197kgm/s) = 0.4394kgm/s, which takes 0.012sectherefore force = (0.4394kgm/s) / (0.012sec)36.62 newtons!Hopfully someone will jump in if I made some error somewhere.
What is cgs units of velocity?
cgs means centimeter,gram,second. cgs unit of velocity is cm/s.
A 60 gram bullet is fired from a gun with 3150 joule of kinetic energy what is its velocity?
A 60 gram bullet fired from a gun with 3150 joules of kinetic energy has a velocity of 324.04 meters per second or 1,063.12 feet per second. (This is about 725mph).
Is it possible for a ball to have more momentum than a truck?
Momentum is mass times velocity. A bullet could theoretically have the same momentum as a moving truck if the bullet's speed is great enough. But practically, no--a bullet going that fast in the atmosphere would break up or burn up instantly. In outer space, it would be possible, but it would be hard to get the bullet up to that speed. Bullets already travel very fast (a fast bullet can go 4,000 feet per second, which is 2,700 miles per hour), but they are very light (a 250 grain bullet = 0.036 pounds). If a truck weighs 10 tons and is going 55 miles per hour, for instance, that 250 grain bullet would have to travel 30 million miles per hour to have the same momentum. Of course, the trivial answer is yes--both can have zero momentum if neither is moving!
Two balls of masses 500gram and 200 gram are moving at valocities 4m s and 8m s respectively on collision they stick together find the velocity af the system after collision?
The idea is to use conservation of momentum. Calculate the total momentum before the collission, add it up, then calculate the combined velocity after the collision, based on the momentum.
What force acting for 0.025 seconds will change the velocity of a 100 gram baseball from 35 ms eastward to 20 ms westward?
use the Impulse-Momentum theorem where (Fnewtons)(tseconds)=change in momentum change in momentum=Pf-Pi; P=mv
What is the difference between a 15 gram ball and a 60 gram ball?
Their difference is that a 15 gram ball is lighter than a 60 gram ball.
Which has greater momentum you steadily jogging one kilometer in 6 minutes or a 5-gram rifle bullet moving at 1000 ms?
You because the product of your mass and velocity will be higher than that of a bullet
A 41.8 gram golf ball is dropped from 1.41 meters and then bounces back to the exact same height what is the force in newtons exerted on the ball in the 0.012 seconds it was in contact with the floor?
Answer:1. ball falls from a height of 1.41m, so what is its momentum when it hits the floor? Well, assuming the ball falls on earth:mom = m.vacceleration = 9.8m/s/swhere m=mass of ball; V=velocity of ball when it hits the groundHow do we know what velocity it travels at when it hits the ground? We use uniform acceleration formulas (because the force due to grav is constant):v=u+a.t; S=u.t+(1/2).a.t^2; V^2=u^2 + 2.a.swhere s=displacment; u=inital velocity; v=final velocty; a=acceleration; t=timeSo which one applies? what do we know about the ball, and what do we want to find out?we know balls mass, inital velocity, which we'll say is 0. We know the acceleration is 9.8m/s/s.We want to know it final velocity, so we'll use V^2 = u^2 + 2.a.su=0soV^2 = 2.a.sthereforeV^2 = 2.(9.8m/s/s).(1.41m) = 27.636soV= root(27.636) = 5.26m/s (3.s.f)we know v, now we can work out momentum:v.m = (5.26m/s).(41.8/1000)kg (notice I have to put it in kg, not grams)0.2197kgm/sNow, this is the momentum the ball has at the moment it touches the ground, and because we know that the force exerted is equal to the rate of change of momentum and we know this change takes 0.012seconds to occur, and that the ball moves with the same velocty in the opposite direction:total change in mom = 2.(0.2197kgm/s) = 0.4394kgm/s, which takes 0.012sectherefore force = (0.4394kgm/s) / (0.012sec)36.62 newtons!Hopfully someone will jump in if I made some error somewhere.
Which has the greatest acceleration a 100-gram a 150 gram or a 200 gram?
None. Assuming they are falling with the same conditions, they accelerate equally. But the 200 gram object has the greatest terminal velocity therefore reaching a higher velocity before resting at a constant speed.
When a 3.8 kg rifle fires a 13 gram bullet it experiences a recoil velocity of 2.4ms-1Calculate the velocity of the bullet?
Before the shot, total momentum of the rifle/bullet system is zero. Momentum is conserved, so must total zero after the shot. Magnitude of momentum = m V (mass, speed); we'll take care of direction independently. Momentum of the rifle: m V = (3.8) x (2.4) = 9.12 kg-m/sec backwards. We need momentum of the bullet = 9.12 kg-m/sec forward m V = 9.12 ===> V = ( 9.12 / m ) = ( 9.12 / 0.013 ) = 701.54 m/s forward
What is cgs units of velocity?
cgs means centimeter,gram,second. cgs unit of velocity is cm/s.
Can you calculate the value of momentum in gram meter per second?
Sure. That's a perfectly good unit of momentum. So is (any unit of mass) divided by (any unit of speed).
What is the wavelength of a 300 gram object moving at a velocity of about 100 mph?
The mass and velocity of an object do not determine its wavelength: it could be travelling in a straight line!
A 60 gram bullet is fired from a gun with 3150 joule of kinetic energy what is its velocity?
A 60 gram bullet fired from a gun with 3150 joules of kinetic energy has a velocity of 324.04 meters per second or 1,063.12 feet per second. (This is about 725mph).
What is the velocity of 20 gram bbs in a L96?
450-480 fps but I mould use at least .25 or more.
