Kinematics
a car starts from rest and reaches a speed of 80 ft/s after traveling 500 ft along a straight road.
determine its constant acceleration and the time of travel.

The acceleration and time are 1.95 m/s and 12.5 s.

Explanation:

Given that,

Speed = 80 ft/s =24.384 m/s

Distance = 500 ft =152.4 m

We need to calculate the acceleration

Using third equation of motion

Where, u = initial velocity

v = final velocity

a = acceleration

s = distance

Put the value in the equation

We need to calculate the time

Using first equation of motion

Hence, The acceleration and time are 1.95 m/s and 12.5 s.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~