PLEASEEE HELP IM SOO STUCKKK A 16.9 kg monkey is swinging on a
5.32 m long vine. It starts at rest,
with the vine at a 43.0° angle.
How fast is the monkey moving at
the bottom of its swing?

Ineed the answer to question 1 , i’m desperate

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

If anyone who can me with this hw? i would really appreciate it