5 A 5 Kg Sled Is Being Kicked On A Horizontal Snow Covered Surface And Has An Initial Velocity Of 4m S It Comes To A S 1 (99.7 KiB) Viewed 43 times
5. A 5 kg sled is being kicked on a horizontal snow covered surface and has an initial velocity of 4m/s. It comes to a stop after traveling a distance of 6m, due to the friction with the snow. Calculate the force of friction which acts on the sled. Hint: Start by drawing all the forces acting on the sled, and then apply the work-kinetic energy theorem. Ans.: F 6.66 N =
4. The velocity vector of a 0.14 kg particle moving in the x-y plane is given by v=3î-47 (in m/s). Calculate the particle's kinetic energy. Hint: first calculate the speed of the particle (that is, the magnitude of the velocity). Ans.: KE=1.75J
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