winton2005212p44hkh winton2005212p44hkh
  • 04-05-2020
  • Physics
contestada

A car slows down from -27.7 m/s to -10.9 m/s while undergoing a displacement of -105 m. What was its acceleration?

Respuesta :

PhantomWisdom PhantomWisdom
  • 10-05-2020

Answer:

Acceleration, [tex]a=3.08\ m/s^2[/tex]      

Explanation:

We have,

Initial speed of the car, u = -27.7 m/s

Final speed, v = -10.9 m/s

Displacement, d = -105 m

It is required to find acceleration of the car. Acceleration of an object is equal to the change in velocity divided by time.

The relation between displacement, velocity and acceleration is given by third equation of motion.

[tex]v^2-u^2=2ad[/tex]

a is acceleration

[tex]a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{(-10.9)^2-(-27.7)^2}{2(-105)}\\\\a=3.08\ m/s^2[/tex]

Answer Link

Otras preguntas

How do you simplify 8 to the -2 power
a jar contains 133 pennies. a bigger jar contains 1 2/7 times as many pennies. what is the value of the pennies in the bigger jar?
a jar contains 133 pennies. a bigger jar contains 1 2/7 times as many pennies. what is the value of the pennies in the bigger jar?
I need to convert this to scientific notation 13,562,600,000,000.00
What is a U.S. engineer's ride?
luz earns $400 for 40 hours of work. use the ratio table to determine how much she earns for 6 hours of work.
Which passage is chronological???
The ordered pairs (0, -2), (1, 1), (2, 4), (3, 7), and (4, 10) represent a function.  What is a rule that represents this function?
food A contains 150 calories in 3/4 of a serving. food B contains 250 calories in 2/3 of a serving. which food has fewer calories per serving?
how can i solve 5.5x+32=57