e ( a ) value of the x and y components of the velocity , and the ( b ) acceleration of the gives point that moves along the path y=1/3 x squared at a constant speed of 8 m / s , when z = 3 . 2. Find the acceleration and velocity of the box ( m - 44.092 pounds ) if it is being pulled up the incline of 20 ° by force F which varies as per graph shown , at / -5 s . Its velocity was 4 m / s atr0 and its coefficient of kinetic friction is 0.2
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1. Find the ( a ) value of the x and y components of the velocity , and the ( b ) acceleration of the gives point that moves along the path y=1/3 x squared at a constant speed of 8 m / s , when z = 3 .
2. Find the acceleration and velocity of the box ( m - 44.092 pounds ) if it is being pulled up the incline of 20 ° by force F which varies as per graph shown , at / -5 s . Its velocity was 4 m / s atr0 and its coefficient of kinetic friction is 0.2
3. Suppose PAL's Boeing 777-300ER has a mass of 25 x 10 kg and its engines produce a total thrust of 40 kN along the runway . During the motion of the airplane , it experience a force of air resistance which is given by R - 2.25 , where R is in Newton , and v is in m / s . Determine the length of the runway required if the airplane takes off and becomes airborne at a speed of 240 kph
4. Consider the system of pulleys shown . ( pulleys & strings are assumed to have negligible masses , and the strings are inextensible ) . Find the ( a ) tension of each of the three strings and ( b ) the acceleration of each of the three masses , if the system is released from rest .
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