Question

which has more momentum, a large truck moving at 30 km/h or a small truck moving at 30 km/h

Answer 1

momentum is simply the motion contained in a body. quantity of motion possessed by a body depends on both of it's mass and velocity

Answer 2

thanks ! you help me so much

Answer 3

are u sure ?

Answer 4

my choices here is ... a.) large truck b.) small truck c.) both have the same momentum

Answer 5

since momentum directly proportional to the mass and the velocity of the body

Answer 6

and according to ur question velocity of the bodies are same then i guess i got my answer

Answer 7

another question ...


the momentum change of an object is equal to the _______

a. force acting on it
b. impulse acting on it
c. velocity change of the objects
d. force acting on it times its velocity
e. objects mass times the force acting on it

Answer 8

i have many question

Answer 9

you would have the largest mass of gold if your chunk of gold weighed 1N on the_________


a. moon
b.planet jupiter
c.earth

Answer 10

ok i guess u know the newton's second law according to it the rate of change of momentum of a body with respect to time is directly proportional to the net external force applied on it and changes takes place in the direction of force

Answer 11

Here:
1) "which has more momentum, a large truck moving at 30 km/h or a small truck moving at 30 km/h"
\[\rho=mass*velocity\]Since the larger truck presumably has a greater mass and both have the same velocity, the larger truck will have more momentum.


2) "the momentum change of an object is equal to the _______"

By definition, impulse is equal to the change in momentum.


3) "you would have the largest mass of gold if your chunk of gold weighed 1N on the_________"

In this question:
\[Force=1N=mass * acceleration\]Rearranging that you get:\[\frac{1N}{acceleration}=mass\]
The mass doesn't change in this problem...only the location in which the measurement is taken. Therefore, the lower the acceleration due to gravity of the planet/moon the higher the mass must be. The only thing else you need to know is that the smaller the planet/moon is, the lower its acceleration due to gravity is. So the accelerations from smallest to largest are: moon < Earth < Jupiter.

If you think about all of that, you'll see that you must have the highest mass if the measurement of 1N was taken on the moon.

Answer 12

momentum=mass*velocity

Answer 13

thanks