Предмет: Физика, автор: Roraip

Помогите срочно с решением

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Ответы

Автор ответа: IUV

1)
v=10 м/с
t=v/a=10/1,25 с = 8 с
S=v^2/2a=10^2/(2*1,25) м =40 м
2)
v=корень(2gh)=корень(2*10*5) м/с = 10 м/с
t=корень(2h/g)=корень(2*5/10) с = 1 с
3)
h=v^2/2g=8^2/(2*10)м= 3,2 м
t=2v/g=2*8/10=1,6 с
4)
a=v^2/r=3^2/5 м/c^2 = 1,8 м/c^2
5)
f=1/T=1/20 Гц=0,05 Гц
v=w*r=2pi*f*r=2*pi*0,05*10 м/с = pi м/c ~ 3,14 м/c

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