Acyclist moving with a constant velocity of 6.0 m/s forward passes a car that is just starting. if the car has a constant acceleration of 2.0 m/s2, when will the car overtake the cyclist?

After 6 seconds, the car will surpass the cyclist.

The speed of the cyclist = 6 m/s.

Let after time t sec, the car will overtake the cyclist.

So, distance covered by the cyclist in t sec = 6t m

Initial velocity of the car is 0 m/s, because the car is just starting.

Acceleration of the car =.

Final velocity of the car =6 m/s.

So to cover the distance 6t, the time required by the car =

t =6 sec

So, after 6 seconds, the car will surpass the cycle.  

the answer is c i did the same question so i know that's right!

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.