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
Molodets [167]
3 years ago
15

Help me with the question in the image I provided​

Physics
1 answer:
inna [77]3 years ago
8 0

Answer: 10 s, 30 m/s , 150 m

Explanation:

Given

The speed of motorcyclist is  u_1=15\ m/s

The initial speed of a police motorcycle is u_2=0\ m/s

acceleration of police motorcycle is a=3\ m/s^2

Police will catch the motorcyclist when they traveled equal distances

distance traveled by motorcyclist in time t is

\Rightarrow s_1=15\times t

Distance traveled by Police in time t is

\Rightarrow s_2=u_2t+\frac{1}{2}at^2\\\Rightarrow s_2=0+0.5\times 3\times t^2

put s_1=s_2

\Rightarrow 15t=0.5\times 3\times t^2\\\\\Rightarrow t(1.5t-15)=0\\\\\Rightarrow t=\dfrac{15}{1.5}=10\ s

Police officer's speed at that time is

\Rightarrow v_2=u_2+at\\\Rightarrow v_2=0+3\times 10=30\ m/s

Distance traveled by each vehicle is

\Rightarrow s_1=s_2=15\times t=15\times 10=150\ m

You might be interested in
After working in a fast-food restaurant for three years to pay for your college tuition, you vowed never to work in a restaurant
devlian [24]

Answer:

The correct answer is Cognitive.

Explanation:

The psychologist Leon Festinger proposed the theory of cognitive dissonance, which explains how people try to maintain their internal consistency. He suggested that individuals have a strong inner need that pushes them to ensure that their beliefs, attitudes and behavior are consistent with each other. When there is inconsistency between them, the conflict leads to a lack of harmony, something that people strive to avoid.

This theory has been widely studied in the field of psychology and can be defined as the discomfort, tension or anxiety that individuals experience when their beliefs or attitudes conflict with what they do. This displeasure can lead to an attempt to change behavior or defend their beliefs or attitudes (even reaching self-deception) to reduce the discomfort they produce.

4 0
4 years ago
PLS HELP 30 POINTS IF U HELP
USPshnik [31]

Answer:

its D so yeah.........

Explanation:

tell me if it's wrong

8 0
3 years ago
Read 2 more answers
An audi travels at 88 km/hr over a distance of 22 km. calculate.25 the time taken for the audi to travel this distance.
sammy [17]
The Audi covers 88 in one hour.
22 is one quarter of 88, so it takes one quarter of one hour. That's 15 minutes.
Note:. The answer would be the same for any other brand of car, motorcycle, airplane etc.
4 0
4 years ago
Is Aluminium a metalliod?
svlad2 [7]
Aluminium is ordinarily classified as a metal. It is lustrous, malleable and ductile, and has high electrical and thermal conductivity. Like most metals, it has a close-packed crystalline structure<span> and forms a cation in aqueous solution.</span>
4 0
3 years ago
Which accurately describes the behavior of sound and light in the vacuum of space?
Romashka-Z-Leto [24]
<span>
A vacuum doesn't contain a medium. Light, which is an electromagnetic
wave and doesn't require a medium, will travel there. Sound, which is a
mechanical wave and requires a medium, will not travel there.</span>

(You can see the light of the sun and other stars, which travels to us through
space.  Astronauts can't hear the sound of each others' voices when they're
standing together on the moon because there's no medium between them,
so they have to use radio even to go only a few feet.)


8 0
4 years ago
Read 2 more answers
Other questions:
  • A race car completed a race in 150 minutes. Its average speed was found to be 150 km/hr. What is the total distance that the car
    12·2 answers
  • Which of the following is a terrestrial planet on which one would observe the Sun rising in the west and setting in the east?
    15·1 answer
  • Yes this nees helppppppppppppppp
    9·1 answer
  • At one end of a production line, Isaac puts peaches into cans on a conveyor belt. He fills 18 cans per minute. As soon as Isaac
    6·1 answer
  • A horizontal power line carries a current of 5960 A from south to north. Earth's magnetic field (77.6 µT) is directed toward the
    8·1 answer
  • a manufacture claims its cleanser works twice as fast as any orther. Could tests be performed to support the claim
    13·2 answers
  • A stone is dropped from the edge of a roof, and hits the ground with a velocity of -180 feet per second. How high (in feet) is t
    12·1 answer
  • There is no question my bad
    11·1 answer
  • Plz I need help !!!!!!!
    14·1 answer
  • What type of device forms images by changing the speed at which light
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!