1. Motion A 300 g cart is initially motionless on a track, but someone pushes it for a bit and lets go. The graph to the right shows the velocity of the cart as a function of time. The velocity of the cart at the end of this time period is about -0.53 m/s x. 1.1. 1.2. 1.4. 2.1. 3. 0 .2. -0.1 -0.2 -0.3 -0.4 -0.5 LQ 0.6 0.7 0.8 0.9 Time (s) Love 1.3. What is the average velocity of the cart while it is being pushed (from the 0.7 s mark to Sbob the 1.0 s mark)? How does this compare to the average speed of the cart over that same time period? Use the average velocity you have just calculated to estimate how far the cart moved during the time that it was being pushed. Ax= (vitve A+ ====2= -0,0 ^ 4x = U 4 + 4x = Vaug 4f (0. 2 1.5. What does the negative sign on the velocity tell you about the motion of this cart? -0.529 m/s If friction is negligible and the cart can keep moving freely, how far should the cart move in the next half a second? -0.265x=0.5-0.53 m/s = displacement 0.58 ment 0.5. 0.530 0.5 8 1.10 s m By the time shown at the end of this graph (1.1 s), there is only 1.0 m of track left for the cart to roll along. How long will it take the cart to reach the end of the track, 1.0 m away? What was the average force that the person pushed with? How much energy was transferred to the cart during the push? Momentum and energy Stort neewled heo orit to libolov agstövs ent ei lerW heeda apsave or of amco ziril asob How much momentum was transferred to the cart during the push? viibolay call prism yd sensa
1. Motion A 300 g cart is initially motionless on a track, but someone pushes it for a bit and lets go. The graph to the right shows the velocity of the cart as a function of time. The velocity of the cart at the end of this time period is about -0.53 m/s x. 1.1. 1.2. 1.4. 2.1. 3. 0 .2. -0.1 -0.2 -0.3 -0.4 -0.5 LQ 0.6 0.7 0.8 0.9 Time (s) Love 1.3. What is the average velocity of the cart while it is being pushed (from the 0.7 s mark to Sbob the 1.0 s mark)? How does this compare to the average speed of the cart over that same time period? Use the average velocity you have just calculated to estimate how far the cart moved during the time that it was being pushed. Ax= (vitve A+ ====2= -0,0 ^ 4x = U 4 + 4x = Vaug 4f (0. 2 1.5. What does the negative sign on the velocity tell you about the motion of this cart? -0.529 m/s If friction is negligible and the cart can keep moving freely, how far should the cart move in the next half a second? -0.265x=0.5-0.53 m/s = displacement 0.58 ment 0.5. 0.530 0.5 8 1.10 s m By the time shown at the end of this graph (1.1 s), there is only 1.0 m of track left for the cart to roll along. How long will it take the cart to reach the end of the track, 1.0 m away? What was the average force that the person pushed with? How much energy was transferred to the cart during the push? Momentum and energy Stort neewled heo orit to libolov agstövs ent ei lerW heeda apsave or of amco ziril asob How much momentum was transferred to the cart during the push? viibolay call prism yd sensa
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Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Transcribed Image Text:1.
Motion
A 300 g cart is initially motionless
on a track, but someone pushes it
for a bit and lets go.
2.
The graph to the right shows the
velocity of the cart as a function of
time. The velocity of the cart at the
end of this time period is about
-0.53 m/s x.
1.1.
1.2.
1.4.
1.5.0
Velocity G (m/s)
2.3.
0
-0.1
-0.2
-0.3
-0.4
-0.5
KQ
0.6
0.7
6m 3016
0.8
0.9
Time (s)
1.0
1.3.
What is the average velocity of the cart while it is being pushed (from the 0.7 s mark to
Tbab the 1.0 s mark)? How does this compare to the average speed of the cart over that same
time period?
If friction is negligible and the cart can keep moving freely, how far should the cart move
in the next half a second?
-0.2658= 0.5 -0.53 m/8 = displacement 0.58
(-0.53 M10 0.5 8 5 1 g my
-0.529 m/s
(360)(
g
By the time shown at the end of this graph (1.1 s), there is only 1.0 m of track left for the
cart to roll along. How long will it take the cart to reach the end of the track, 1.0 m away?
Momentum and energy
swied
Vioolev apsis
ve art of
terli toy
2.1. How much momentum was transferred to the cart during the push?
1.10 s
od p
2.2. How much energy was transferred to the cart during the push?
200
yang
Lokepnurs
Use the average velocity you have just calculated to estimate how far the cart moved
Towers 100
^
during the time that it was being pushed. Ax=(vi+√A) 4+ = -0.53X (0.35)
Ax=
=
V
2
2 = -0,080MX
What was the average force that the person pushed with?
What does the negative sign on the velocity tell you about the motion of this cart?
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vils sal T.8
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