Answer:
systems
Explanation:
they are a bunch of things functioning together
Idk can u say it in a another way
Given :
Initial velocity , u = 0 m/s² .
To Find :
The acceleration of the cart.
Solution :
Since, acceleration is constant.
Using equation of motion :

Putting, t = 1 s and x = 4 m in above equation, we get :

Therefore, the acceleration of the cart is 8 m/s².
The answer is b because the sun's surface temperature is 5,778 K.