Posted by **reda** on Thursday, January 24, 2013 at 10:40pm.

What is the net force of a 5.0 N force and an 7.0 N force acting on an object for each of the following conditions?

(a) The forces act in opposite directions. ( )N

(b) The forces act in the same direction.( )N

----------------------------------------------

A force of 2.4 N is exerted on a 6.2 g rifle bullet. What is the bullet's acceleration?

( ) m/s2

----------------------------------------------

What is the force in newtons acting on a 4.6 kg package of nails that falls off a roof and is on its way to the ground?

( )N

----------------------------------------------

A small car with a mass of 800 kg travels northward at 28 m/s.

Does the car have more or less momentum than a truck with a mass of 12000 kg traveling eastward at 15 m/s?

more

less

How much more or less?

times

----------------------------------------------

Two ice skaters stand together as illustrated in Figure (a) below. They "push off" and travel directly away from each other, the boy with a velocity of v = 0.33 m/s to the left. If the boy weighs 728 N and the girl weighs 465 N, what is the girl's velocity after they push off? (Consider the ice to be frictionless. Enter the magnitude only.)

m/s

----------------------------------------------

An asteroid in an elliptical orbit about the sun travels at 1.5 106 m/s at perihelion (the point of closest approach) at a distance of 3.3 108 km from the sun. How fast is it traveling at aphelion (the most distant point), which is 9.2 108 km from the sun?

m/s

----------------------------------------------

## Answer This Question

## Related Questions

- Physics - What is an equilibrant? (Points : 1) an object that has zero net force...
- physical science - find the net force produced by a 40 Newton force and a 50 ...
- physical science - find the net force produced by a 40 Newton force and a 50 ...
- physical science - find the net force produced by a 40 newton force and a 50 ...
- physical science explorations - find the net force produced by a 40 newton force...
- science - What is the net force of a 4.0N force and 8.0N force acting on an ...
- science - What is the net force of a 4.0N force and 8.0N force acting on an ...
- physics - A)An object at rest has no forces acting on it. B)An object can be ...
- College physics - According to Newton's Third Law, for every action there is an ...
- Science in motion pHY 102 - Find the net force produced by a 30-N force and a 20...

More Related Questions