A toy race car travels down a 25cm ramp in 5 seconds. Calculate its speed.

Question

A toy race car  travels down a 25cm ramp in 5 seconds.  Calculate its speed.

anonymous · Answer

in, km/h, m/s, cm/s?

anonymous · Answer

speed = 25 cm / 5 seconds = 5 cm / seconds = 5 cm / s

anonymous · Answer

And using the conversion factors you can convert in other units such as in km/h and  m/s.

anonymous · Answer

What could you do to decrease the race car's speed on the next trial?

	 A.	
Increase the friction between the ramp and the wheels

	 B.	
Make the ramp steeper

	 C.	
Neither A nor B

	 D.	
Both A and B 

Sorry for all the questions.

math&ing001 · Answer

You should thank him first for providing help. Then you can ask another question...

anonymous · Answer

That's technically a physics/logic question. But it's B. And also, it would indeed be more polite to thank the persons that answer you for their time/effort.

anonymous · Answer

Thank you i'm sorry.