The greatest change in momentum will only be produced by
a larger force acting over a short time
.
What is the momentum of a 1200 kilogram car traveling at 15 meters per second?
What is the momentum of a 1,200-kilogram car traveling at 15 meters per second due east? =
1200kg V-15m5 29
.
What occurs when the string is cut and the carts move apart?
A string holds the carts together. What occurs when the string is cut and the carts move apart?
The magnitude of the acceleration of cart A is one-half the magnitude of the acceleration of cart
B.
What is the speed of CART A after the spring is released?
The speed of cart A is
0.33 meters per second
after the spring is released.
How do you calculate impulse?
- You can type the initial and final momentum values into our calculator to find the impulse directly from the impulse formula J = Δp .
- You can also enter the values of mass and velocity change of an object to calculate the impulse from the equation J = mΔv .
How do you find change in momentum?
1) The change in momentum of an object is its mass times the change in its velocity.
Δp=m⋅(Δv)=m⋅(vf−vi)
.
How do you calculate change in momentum?
The Momentum Calculator uses the formula
p=mv
, or momentum (p) is equal to mass (m) times velocity (v). The calculator can use any two of the values to calculate the third.
Which forces can be either attractive or repulsive Regents?
(1)
The gravitational force
may be either attractive or repulsive, whereas the electrostatic force must be attractive. (2) The gravitational force must be attractive, whereas the electrostatic force may be either attractive or repulsive.
Which pair of quantities could be used to determine the coefficient of friction?
Mathematically,
μ = F/N
, where F is the frictional force and N is the normal force. Because both F and N are measured in units of force (such as newtons or pounds), the coefficient of friction is dimensionless. The coefficient of friction has different values for static friction and kinetic friction.
What is the magnitude of the average net force acting on the cannon?
The cannonball is acted on by an average force of
8.0 × 103 newtons for 1.0 × 10−1 second
.
What spring has the greatest spring constant?
A. According to Hooke’s law, the stronger the spring, the more force is required to stretch it the same distance. The largest weight (force) is required to stretch
spring 3
, so spring 3 is the stiffest, and it has the largest spring constant.
Which cart has the greatest kinetic energy?
C. Cart 2
has the greatest kinetic energy.
Which could cause a decrease in the momentum of a moving object?
Momentum of a object is equal to its mass multiplied by its velocity. …
Decreasing either mass or velocity will decrease
momentum. Some or all of the momentum of an object can be transferred to another object by colliding with it.
What is the impulse delivered to the ball?
The key here is that the impulse delivered by the floor to the ball
equals the ball’s change in momentum
. To determine the ball’s change in momentum, we have to determine the difference between its velocity upon hitting the floor, and its velocity upon rebounding.
What is the rate of change of momentum equal to?
Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton’s second law of motion states that the time rate of change of momentum is equal to
the force acting on the particle
.
Is impulse and momentum the same?
The impulse experienced by
the object equals the change in momentum of the object
. In equation form, F • t = m • Δ v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum. … In a collision, the impulse experienced by an object is always equal to the momentum change.
