Netative number?
mu=v^2/(Rg) R=95, g= 9.8, v^2=positive.
How are you getting a negative number? mu is defined as friction force divided by force normal. don't use -9.8m/s^2 times mass as force normal. Forces have directions, that can change - to +
Jason approaches a rotary in her 3,500kg Mercedes. Its radius of curvature 95m but his speed is 25m/s. The acceleration is 6.6 m/s^2. What is the coefficient friction between his tires and the road?
I know Mu mg=mv^2/R but I am unable to complete my equation and continue to end up with a negative number
3 answers
ok I think I figured it out mu=0.67
thank you for your help
3 answers