Physics, 26.02.2020 01:53 DangerDash
At a certain instant, particles and have position vectors and velocities given by: Matlab/Mathematica input:
rP = [2,-5]
rQ = [-3,-6]
vP = [-7,-8]
vQ = [-2,-8]
What is the rate of change of the distance between points and ?
Answers: 1
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Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
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At a certain instant, particles and have position vectors and velocities given by: Matlab/Mathematic...
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