Answer:
a=158 ms^-2 (corr to 3 sigfig)
v=4.16 ms^-1
Explanation:
u=0, v=77.2, s=18.9
v^2=u^2+2as
77.2^2=2(a)(18.9)
a=158 ms^-2
Net force:
F=Wsin(32)=0.5g sin(32)=0.5a
a=g sin(32)
t=0.8
u=0
v=u+at
v=0+gsin(32)(0.8)
