1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Margaret [11]
3 years ago
9

Which body exerts the force that propels the sprinter, the blocks or the sprinter?

Physics
1 answer:
kicyunya [14]3 years ago
5 0
Answer: The blocks

Explanation:
When the sprinter takes off, he/she presses hard on the block.
The blocks apply an equal and opposite force to the sprinter according to Newton's 3rd law of motion.
The reaction force from the blocks gives the sprinter the initial acceleration to begin the race.

You might be interested in
a car's engine is only 12 % efficient at converting chemical energy in gasoline to mechanical energy. If it takes 18000 N of for
Georgia [21]
I wish i could help but idk the answer

6 0
3 years ago
How long does it take a car traveling at 45km/h to travel 100.0 m?
djyliett [7]

Answer:

8 seconds

Explanation:

Since the carspeed is in km/h, we need equal units, so we will make 100.0m 0.1000km.

Then we need to find how long it takes the car to travel 0.1km

We can use the formula distance=speed * time and get

0.1=45 * time

Therefore we get .002222... hours

Multiplying this by 3600 (to get seconds, 60x60), we get 8 seconds

6 0
3 years ago
Read 2 more answers
4. A car accelerates uniformly from rest at 3.2 m/s^.
Oksi-84 [34.3K]

Answer:

A

Explanation:

7 0
3 years ago
If you are reading this please help ASAP !!!!!
NISA [10]

Answer:

ok

Explanation:

5 0
3 years ago
In which situations is gravitational potential energy present?
Assoli18 [71]
Gravitational potential energy is associated with the shape or position of an object.
1.)When an object is placed at height h above ground, gravitational potential energy associated with it is given by,
P.E = mgh
2.)In projectile motion during upward motion, kinetic energy of object is converted into potential energy. 

6 0
3 years ago
Other questions:
  • For a maximum superelevation of 0.08 ft/ft and a degree of curve of 4o, calculate the maximum safe speed for the curve assuming
    10·1 answer
  • Air is colorless, odorless, and tasteless. describe one way that air can be shown to exist.
    10·1 answer
  • Predict using Boyle's law, what will happen to a balloon that an ocean diver takes to a pressure of 202 kPa.
    11·1 answer
  • How long will it take an object to hit the ground if dropped from 100 meters
    11·2 answers
  • How is energy related to the change of state represented by the model?
    7·2 answers
  • Explain the difference between general intelligence and specific intelligence.
    12·2 answers
  • Time period of a simple pendulum is measured at karachi, what change will occur in the time period ,if it is measured on mount e
    10·1 answer
  • An object has a certain color because of the way it _____ light.
    10·1 answer
  • In the experiment, a meter is hooked up to a speaker to monitor the amplitude of the received sound. Suppose the background sign
    6·1 answer
  • A 3kg object has an initial velocity (6i - 2j) m/s (a ) what is its kinetic energy at this time? (b) Find total work done on the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!