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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: MathsNerd203 on June 16, 2015, 08:43:45 pm

Title: Kinematics Question
Post by: MathsNerd203 on June 16, 2015, 08:43:45 pm

Can someone please confirm my answer to this question  ;D

A car averages a speed of 80km/h for a 120 km journey. For the first 60 kilometers it averages a speed of 60km/h. What speed must the car travel for the remainder of its journey.

I got that it should travel at 120km/h for the remaining 60km. Is this correct? If not, what did I do wrong?

Cheers  :)

Title: Re: Kinematics Question
Post by: Kel9901 on June 16, 2015, 09:57:46 pm

Quote from: MathsNerd203 on June 16, 2015, 08:43:45 pm

Can someone please confirm my answer to this question  ;D

A car averages a speed of 80km/h for a 120 km journey. For the first 60 kilometers it averages a speed of 60km/h. What speed must the car travel for the remainder of its journey.

I got that it should travel at 120km/h for the remaining 60km. Is this correct? If not, what did I do wrong?

Cheers  :)

you're right :)