A child riding a bike has a total mass of 60kg. What is the momentum of the child-bike system if the child rides a distance of 200 m in 5 seconds at a constant speed?

Momentum = 2,400 Pa

Explanation:

Given:

Total mass = 60 kg

Distance travel = 200 m

Time = 5 sec

Find:

Momentum

Computation:

Velocity = Distance / time

Velocity = 200 / 5

Velocity = 40 m/s

Momentum = Mass x Velocity

Momentum = 60 x 40

Momentum = 2,400 Pa

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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