An object traveling at a 5.0 m/s east has a mass of 4.0 kg. what is the magnitude of the object’s momentum?

0.80 kgm/s
1.3 kgm/s
10. kgm/s
20. kgm/s

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Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin