# Physics

Need serious help!!

1. How can the momentum of a moving object be found?
A. By multiplying its mass by its acceleration.
B. By dividing its change in distance trabeled by the time it travels.
C. By dividing its velocity bu the time it travels.
D. By multiplying its mass by its velocity.

2. In everyday life, changing the speed of a moving object will change all but which value?
A. Acceleration
B. Mass
C. Velocity
D. Momentum

3. What does Newton's second law of motion state?
A. For every force there is an equal and opposite force.
B. Momentum equals mass times velocity.
C. Force equals mass times acceleration.
D. An object at rest stays at rest and an object in motion stays in motion with the same speed and the same direction unless acted upon by an unbalanced force.

4. If the total net force on a system is zero, assuming the mass remains constant, which must be true?
A. The velocity is increasing.
B.The acceleration is increasing.
C. The acceleratin is zero.
D. The velocity is decreasing.

5. Which scenario describes an object experiencing zero net force?
A. A balloon floating upward at a constant velocity.
B. A plane landing on a runway.
C. A rock falling off a cliff.
D. A car driving around a circular race track.

1. 👍 0
2. 👎 0
3. 👁 95
1. 1. A
2. B
3. A
4. D
5. A

1. 👍 1
2. 👎 0
2. rainbow is wrong i failed its

a
c
d
a
b

1. 👍 0
2. 👎 0
3. 1) by multiplying its mass by its velocity
2) mass
3) Force equals mass times acceleration.
4) The acceleration is zero.
5) A balloon floating upward at a constant velocity.

1. 👍 2
2. 👎 0

## Similar Questions

1. ### Science

1. The line on the graph below represents an object that is: A: Moving at a constant speed B: Increasing its speed C: Decreasing it's speed D: Not moving at all 2. To determine the acceleration of an object moving in a straight

2. ### physics

Object 1 has a velocity of 3m/s and a mass of 5kg. Object 2 also has a mass of 5kg but isn't moving. Object 1 collides with Object 2 and they move off together. Work out their speed using the principle of conservation of momentum.

3. ### Physics Momentum

1) Two 1 kg balls move away from each other, one traveling 5 m/s to the right, the other 5 m/s to the left. What is the magnitude of the total momentum of the system? 2) Two 1000 kg cars drive east; the first moving at 20 m/s, the

4. ### Physics

Two objects are moving in the xy-plane. Object A has a mass of 3.2 kg and has a velocity of Va= (2.3 m/s)i + (4.2m/s)j and object B has a mass of 2.9 kg and has a velocity of Vb= (-1.8m/s)i + (2.7m/s)j. What is the total momentum

1. ### physics

An object of mass m is hanging by a string from the roof of an elevator. We want to compare the tension in the string due to the weight of the object under various conditions. Which statements are true? Choices: True, False. A. If

2. ### Physics

1. Some students conduct an experiment to prove conservation of momentum. They use two objects that collide. Measurements are taken before and after the collision. Which quantities should be measured before and after the

An object is moving along a straight line and the uncertainty in its position is 1.1 m. (a) Find the minimum uncertainty in the momentum of the object. (b) Find the minimum uncertainty in the object's velocity, assuming that the

4. ### Physics

An interacting system of two objects has no external force acting on the system. The first has a mass of 2.00kg and is moving with a velocity (2.00m/s)i + (1.00m/s)j at time t=0s. The second object has a mass of 3.00kg and is

1. ### maths

a car weighing 1600kg moving with a velocity of 30 meter per second retarded uniformly coming to rest in 20 seconds calculate 1, initial momentum 2, final momentum 3, rate of change of momentum 4,acceleration of the car 5,

2. ### physics

Suppose a ball of putty moving horizontally with 1kg.m/s of momentum collides and sticks to an identical ball of puffy moving vertically with 1 kg.m/s of momentum. Why is their combined momentum not simply the arithmetic sum, 2

3. ### physics

a 25kg object moving with a velocity of 3m/s to the right collided with a 15 kg object moving to the left at 6 m/s. determine the velocity of the 25kg object after the collision if 15kg object a. continued to move to the left, but