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
Temka [501]
3 years ago
5

To demonstrate the tremendous acceleration of a top fuel drag racer, you attempt to run your car into the back of a dragster tha

t is "burning out" at the red light before the start of a race. (Burning out means spinning the tires at high speed to heat the tread and make the rubber sticky.) You drive at a constant speed of v0 toward the stopped dragster, not slowing down in the face of the imminent collision. The dragster driver sees you coming but waits until the last instant to put down the hammer, accelerating from the starting line at constant acceleration, a. Let the time at which the dragster starts to accelerate be t = 0.
(A) What is tmax, the longest time after the dragster begins to accelerate that you can possibly run into the back of the dragster if you continue at your initial velocity?
Physics
1 answer:
Daniel [21]3 years ago
5 0

Answer:

Explanation:

If the dragster  attains the speed equal to that of the car which is moving with constant velocity of v₀ , before the two close in contact with each othe , there will not be collision .

So the dragster starting from rest , must attain the velocity v₀ in the maximum time given that is tmax .

v = u + a t

v₀ = 0 + a tmax

tmax = v₀ / a

The value of tmax is v₀ / a .

You might be interested in
Which road would exert the LEAST amount of friction on a car?
bearhunter [10]

Answer:

Icy roads

Explanation:

There is so little friction you slide on it way more than other roads. :)

6 0
2 years ago
How many protons are in this atom if it has a balanced charge
Lerok [7]
It would be 20 protons left because 1-19= 20
7 0
2 years ago
What conclusions can you draw about an object that either has an OVERALL negative charger OR an OVERALL positive charge?
sveticcg [70]

Answer:

The object is also positively charged because same or alike charges repel

Explanation:

6 0
3 years ago
Macronutrients include carbohydrates, proteins, lipids, and _____.
melamori03 [73]
<span>Macronutrients include carbohydrates, proteins, lipids, and fats.</span>
8 0
3 years ago
An 8.5 kg crate is pulled 5.1 m up a 30 degree incline by a rope angled 17 degrees above the incline. The tension in the rope is
Ulleksa [173]

Answer:

1. a W_t=746.63 J

  b E_p=212.415 J

  c W_n=183.96J

2. T_e=99.71J

Explanation:

a). The work done by the tension is:

W_t=T*dt

dt=\frac{5.1}{cos(17)}

W_t=140N*\frac{5.1}{cos(17)}

W_t=746.63 J

b). The work done potential of gravity

E_p=m*g*h

h=5.1*sin(17)

E_p=8.5kh*9.8*5.1*sin(30)

E_p=212.415 J

c). The work done by the normal force

W_n=N*d_n

d_n=5.1*sin(30)=2.55

W_n=8.5kg*9.8*cos(30)*2.55

W_n=183.96J

2. The increase in thermal energy is:

T_e=F*d

F_k=u_k*m*g=0.271*8.5kg*9.8*cos(30)

F_k=19.5N

T_e=19.55*5.1m

T_e=99.71J

4 0
3 years ago
Other questions:
  • What is the defenition of mass
    10·2 answers
  • Identify the type of electrification of the road
    11·1 answer
  • Children learn to resolve conflicts from surrounding adults.
    5·1 answer
  • A 2000 kg boat drifts along the waves at a velocity of 3 m/s. What is the kinetic energy of the boat?
    13·1 answer
  • Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum th
    14·1 answer
  • A homemade capacitor is assembled by placing two 10-in. pie pans 2 cm apart by a piece of glass and connecting them to the oppos
    11·1 answer
  • The kinetic energy of an object with a mass of 6.8 kg and a velocity of 5.0 m/s is J. (Report the answer to two significant figu
    5·2 answers
  • Suppose these waves represent the sound of a siren on a passing ambulance. Which wave represents the sound of the siren after it
    5·2 answers
  • An artery with cross sectional area of 1 cm2 branches into 20 smaller arteries each with 0.5 cm2 cross sectional area. If the ve
    6·1 answer
  • For an impulse-momentum experiment, students collect data on a collision between blocks A and B . A force probe attached to bloc
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!