The speed of the car is 75 km/h
<h3>Further explanation</h3>
These are the formulas that we have to remember before solving the problem.
Speed is the rate of change of distance.

<em>v = speed ( m/s )</em>
<em>d = distance ( m )</em>
<em>t = time ( s )</em>
Acceleration is the rate of change of velocity.

<em>a = acceleration ( m/s² )</em>
<em>Δv = change in speed ( m/s )</em>
<em>t = time ( s )</em>
Let us now tackle the problem!
<u>Given:</u>
distance = d = 150 km
time taken = t = 7200 s = 2 hours
<u>Unknown:</u>
velocity = v = ?
<u>Solution:</u>



The acceleration of the car is 0 m/s² because it travels with constant speed.
We could also plot the distance vs time graph as shown in the attachment.
<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: Middle School
Subject: Physics
Chapter: Kinematics
Keywords: indycar top speed of a fastest police car has ever gone
Taking a shot in the dark here as i mostly deal with atomic structure and the fact i haven't handled a diverging mirror ut would it be a virtual image because that needs parallel normal lines which cannot occur
I think it’s D................
Answer:
C. 900J (i tried my best)
Explanation:
the student's mass=60kg
gravitational field strength= 10N/kg:
1kg = 10N
60kg = 600N
(where 600N is the gravitational field strength of the student)
√1.5²+2² (pythagoras theorem)
=2.5m (the stairs' length)
work done= N x distance move in the direction of force (m)
=600N x 2.5m
=1500J @ Nm
1500J - 600N (gravitational field strength of the student)
=900J(??)
-correct me if i'm wrong i'm just a human :)
Answer:
-148,6 MJ
Explanation:
Dado que la liberación de calor al medio ambiente es;
H = mcθ
Dónde;
m = masa de agua
c = capacidad calorífica específica del agua
θ = aumento de temperatura
H = 1220 kg × 4200 × [-29-0]
H = -148,6 MJ