1) Displacement: -49 m, in the negative direction
Explanation:
The displacement of an object is a vector, whose magnitude is given by the difference between the final point of the motion and the starting point:
In this problem, the starting point is +34 m, while the final position is -15 m; therefore, the displacement is:
and the direction is negative, in according to the negative sign.
2) Velocity: -3.27 m/s
Explanation:
Velocity is equal to the ratio between the displacement and the time taken:
in this problem, we have:
d = -49 m is the displacement
t = 15 s is the time
therefore, the velocity is
and the direction is negative.
The change in momentum of the ball is 0.6Kgm/s.
To find the answer, we need to know about the momentum.
<h3>What's the expression of change in momentum during collision?</h3>
- The change in momentum= final momentum - initial momentum of the objects
- And momentum= mass × velocity
<h3>What's the change in momentum here?</h3>
- Here the initial momentum= 0.10×30=3Kgm/s
- Final momentum= 0.10×24= 2.4Kgm/s
- Change in momentum= 3-2.4= 0.6Kgm/s
Thus, we can conclude that the change in momentum is 0.6Kgm/s.
Learn more about the momentum here:
brainly.com/question/4126751
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Use the definition of average acceleration:
<em>a</em> = ∆<em>v</em> / <em>t</em>
If <em>v</em> is the starting speed, then ∆<em>v</em> = 0 - <em>v</em>, so solve for <em>v</em> :
-6.42 m/s² = (0 - <em>v</em>) / (2.85 s)
<em>v</em> = (6.42 m/s²) (2.85 s)
<em>v</em> ≈ 18.3 m/s
Answer:
25N.s=25kgm/s
Explanation:
The resulting momentum in this case is equal to the impulse created by the force 5N during 5 seconds
ΔP=Force.time=F.t
= 5x5=25kgm/s
Your answer would silicon