. For an elastic head-on (assumed) collision between equal masses, they simply swap velocities. The final velocities of objects 1 and 2 are 0 and v, respectively.
<span>2. mv = (2m)u </span>
<span>where u = final velocity. Then u = v1 = v2 = v/2 </span>
<span>3. Initially, p = (2m)v </span>
<span>final p = 2mv = 2mv1 + mv2 </span>
<span>But for an elastic head-on collision, we know that the </span>
<span>relative velocity of approach = relative velocity of separation, or </span>
<span>v = v2 - v1 </span>
<span>v2 = v + v1 </span>
<span>plug into final p: </span>
<span>2mv = 2mv1 + m(v + v1) = 2mv1 + mv + mv1 </span>
<span>mv = 3mv1 </span>
<span>v1 = v/3 </span>
<span>v2 = v + v/3 = 4v/3 </span>
<span>4. initial p = mv </span>
<span>final p = mv = (m + 3m)u = 4mu </span>
<span>u = v1 = v2 = v/4</span>
Answer:
Explanation:
Wave length of sound from each of the speakers = 340 / 1700 = .2 m = 20 cm
Distance between first speaker and the given point = 4 m.
Distance between second speaker and the given sound
= √ 4² + 2² = √16 +4 = √20 = 4.472 m
Path difference = 4.472 - 4 = .4722 m.
Path difference / wave length = 0.4772 / 0.2 = 2.386
This is a fractional integer which is neither an odd nor an even multiple of half wavelength. Hence this point of neither a perfect constructive nor a perfect destructive interference.
Given :
Pilot sits 2.19 m from the center of rotation.
Horizontal centripetal acceleration is 65.8 m/s².
To Find :
The angular velocity of the pilot .
Solution :
We know, centripetal acceleration is given by :
Hence, this is the required solution.
Answer:
A.) acceleration= 55.6m/s^2
B.) acceleration of table= 5.0m/s^2
C.) More acceleration
Explanation:
A.) 100N/1.8kg= -55.6
B.) 100N÷20kg= 5
C.) Because since the table would have less mass, it would have had to accelerate more
