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- Complete any four from below. Must show all steps used to get your final answer. 3. Given a speed of 90 kilometers/hour, convert the speed to miles per hourHi! Please indicate the given, diagram, FBD, and the solution with no shortcuts, Thanks! 6) Four men are competing in an air-racing event using their brand-new aerobatic planes. They took off a thousandfeet above the sea level. Five minutes after the race started, man A is located at (−3î− ĵ− 2k̂) ft, man B at (8î− 5ĵ−4k̂) ft, man C at (−6î− 4ĵ+ 7k̂) ft, and finally man D at (4î− 2ĵ+ 7k̂) ft.a) Express the axes components of A⃗ − B⃗ + C⃗ − D⃗ in terms of unit vectors.b) Calculate letter a’s magnitude.Which objects (if any) traveled with a constant speed? How you know? Which objects (if any) traveled stopped traveling after 3 seconds? How you know? After 5 seconds, in a race between object A and B, after 5 seconds, who won? How do you know?
- Please answer the question and subquestions completely! This is one whole question which has subquestions! According to the official Bartleby guidelines, each question can have up to two subquestions! Thank you! 1) While accelerating at a constant rate from 12.0 m/s to 18.0 m/s, a car moves over a distance of 60.0 m. How much time does it take? 1.00 s 2.50 s 4.00 s 4.50 s none of the above A) A sports car accelerates at a constant rate from rest to a speed of 90 km/hr in 8 s. What is its acceleration? 3.13 m/s2 4.22 m/s2 5.31 m/s2 6.67 m/s2 none of the above B) What distance does a train travel while slowing from 28 m/s to zero in 12 s? 168 m 178 m 236 m 291 m none of the above C) If the instantaneous velocity of an object is zero, then its acceleration must be: zero positive negative 100 m/s2 not enough…Please answer the question and its subquestions entirely! This is one question with two subquestions. According to the official Bartleby guidelines, I am alowed to have up to two subquestion! 1) A driver in a car traveling at a speed of 26.8 m/s sees a deer 100 m away on the road. Calculate the minimum constant acceleration that is necessary of the car to stop without hitting the deer (assuming the deer does not move). -4.20 m/s2 -1.75 m/s2 -2.89 m/s2 -3.59 m/s2 a) A basketball player can jump 1.6 m off the hardwood floor. With what upward velocity did he leave the floor? 1.4 m/s 2.8 m/s 4.2 m/s 5.6 m/s b) Two stones are thrown from the top edge of a building with a speed of 20 m/s, one straight down and the other straight up. The first one hits the street in a time t 1. How much later is it before the second stone hits? 5 s 4 s 3 s not enough information.Think back to the last time you got a new phone and had to figure out how it worked. In what way did you employ the scientific method, maybe without even realizing that you did?
- 3. Cyclist A travelled 60 kilometers while Cyclist B reached as far as 180,446 feet. a. Who travelled the farthest? b. What is the difference between their end points? 4. Electricity travels at about the speed of light, 186,000 miles per second. How many meters it can travel every minute? 5. Per hour, a 30-kW diesel generator consumes 8.80 gallons of fuel. If the generator was turned on for 150 minutes, how many cubic meters of diesel is needed? 6. Juan exerts 75 kg of force to push a box. How much force in Newton did he apply? 7. 75N is equal to how much lb force? 8. Convert 1107 ft-lb into kJ.1) Suppose Joel was able to travel 6.6 km west in 1.2 hours in his car. What is his average velocity in meters (m) per minute (min)? Note: Round your answer to 2 decimal places. ____________________ 2) Hailey is traveling in her car at a constant speed (or rate) of 6 m/s. How long will it take her to travel 800 meters? Please state your answer in seconds and round to two decimal places. ____________________ 3) Robert travels for 2 minutes at 8 m/s to the north. How much will he be displaced? ____________________No need for explanation, just the answer ASAP i’ll rate. Part A and B please.
- After watching the video of Felix Baumgartner setting the world record free fall, answer these two questions and upload to this folder. For both questions assume he was in free fall with no air resistance. Also assume the acceleration due to gravity is 10 m/s^2. 1. How fast is Felix going after 30 seconds? 2. How far did Felix fall after 30 seconds?What is your conclusion? Ps. Context and Answer is provided, I just need a conclusion.Velocity and Acceleration A brick becomes dislodged from the top of a building (at a height of 1,240 feet) and falls to the sidewalk below. (Let the position function for a free-falling object be −16t2 + v0t + h0.) (a) Write the position, velocity, and acceleration functions of the brick. s(t) = −16t2+1240 v(t) = −32t a(t) = −32 (b) How long does it take the brick to hit the sidewalk? (Round your answer to two decimal places.) s (c) How fast is the brick traveling when it hits the sidewalk? (Round your answer to one decimal place.) ft/sec