In coming to a stop, a car leaves skid marks 65m long on a highway. assuming a deceleration of 4m/s^2,estimate the speed of the car just before breaking?

By definition, we have that the final speed is given by:

Where,

vo: initial speed

a: acceleration

d: displacement

Substituting values we have:

From here, we clear the value of the initial velocity.

We have then:

The speed of the car just before breaking was:

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.