A block of mass 800 g is dragged by an external force of magnitude 5 N along a rough horizontal surface, as shown in the figure. The external force makes an angle of 30' with
the surface and the coefficient kinetic friction between the block and the surface is 0.6.
a) Draw the free-body diagram of the problem and show all of the forces.
b) Find the acceleration of the block.
c) If the block starts from rest, what will be its speed after being dragged for 300 cm?
30
800 g
HR

hi there if you are asking for conformation that wavelingth is the correct answer is wrong it is the answer is frequency. : )

i hope this you out, have a wonderful day

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

the results is a decrease in air temperature with an increase of altitude.

explanation:

not too sure thinking all accelerations are pointed down