A stone is dropped from the roof of a high building. A second stone is dropped 1.33 s later. Part A How far apart are the stones when the second one has reached a speed of 15.0 m/s? Express your answer to three significant figures and include the appropriate units.
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- Part A If a flea can jump straight up to a height of 0.370 m, what is its initial speed as it leaves the ground? Express your answer in meters per second. V = m/s Submit Request Answer Part B How long is it in the air? Express your answer in seconds. ν ΑΣφ ? t = Submit Request AnswerI have no clue why this problem is being rejected. I have submitted similar problems and have been answered. Can I please get some help with this. Thank you!Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics experiments. You fasten a large toy rocket to the back of a sled and take the modified sled to a large, flat, snowy field. You ignite the rocket and observe that the sled accelerates from rest in the forward direction at a rate of 13.5 m/s2 for a time period of 3.30 s. After this time period, the rocket engine abruptly shuts off, and the sled subsequently undergoes a constant backward acceleration due to friction of 6.15 m/s2. After the rocket turns off, how much time does it take for the sled to come to a stop? time: ? By the time the sled finally comes to a rest, how far has it traveled from its starting point? distance traveled: ?
- A car with an unknown initial velocity decelerates over the course of 6.00 s to a velocity of 15.0 m/s, after which the car continues at a constant velocity for another 4.00 s. Part A If the car travels a total distance of 210 m (in the entire 10.00 s interval) what was the initial velocity? Vo = [Π ΑΣΦ ? velocity (m/s) in m/s 0 1 2 3 velocity vs time 4 5 6 time (seconds) 7 9 10 11A particle P starts at time t = 0 s at the polar position x = -15 m y = 8 m. The velocity of the particle is written in the polar basis associated with its current position, and is: v = 2ê, m/s. If we have final and final, then we can find final and final with: X final symbolic expression X = ? m, yfinal ? Give your answers in symbolic form. You should use the scalar variables r_f and theta_f. Functions are available like sin(), cos(), atan2(), sqrt(), and log(), as well as the mathematical constants pi and e. The regular arithmetic operators are +, -, *, and /, and x^y means x to the power of y. 5t + k would translate to 5*t+k. Now, find the final Cartesian position of the particle at time t = 2. symbolic expression m, y = ? m mReview Concept Simulation 2.3 before attempting this problem. At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 7.94 m/s. A player cannot touch the ball until after it reaches its maximum height and begins to fall down. What is the minimum time that a player must wait before touching the ball? Number Units
- The acceleration of a bus is given by a, (t) = at, where a = 1.25 m/s³ is a constant. ▾ Part A If the bus's velocity at time ₁1.15 s is 4.90 m/s, what is its velocity at time t₂ = 2.20 s? Express your answer in meters per second. = 7.10 m/s Submit ✓ Correct Correct answer is shown. Your answer 6.78 m/s was either rounded differently or used a different number of significant figures than required for this part. Part B Previous Answers If the bus's position at time ₁ = 1.158 is 6.00 m, what is its position at time (₂2.20 s? Express your answer in meters. ΓΓΙ ΑΣΦ VO z= 7.90 A Submit Previous Answers Request Answer < Return to Assignment P * Incorrect; Try Again; 8 attempts remaining You may have omitted the initial velocity of the bus. Provide Feedback ? mThe acceleration of a bus is given by ax(t) = αt, where α = 1.15 m/s3 is a constant. a. If the bus's velocity at time t1 = 1.05 s is 4.90 m/s, what is its velocity at time t2 = 2.20 s? b. If the bus's position at time t1 = 1.05 s is 6.05 m, what is its position at time t2 = 2.20 s?A roof worker loses his grip on his box of tools while working on a tall house. His box slides down the roof. The roof is angled at 29 degrees with the horizontal. The roof is made of a frictionless material. The box travels 5 m down the roof and then leaves the edge of it 12 m above the ground. a). Figure out the box's velocity as it leaves the house's roof? b). How far from the base of the house does the box hit the ground? c). By how much does the box clear the yard fence which is 1.8m tall and located 6.7m away from the base of the house? I TOOLS 5m 29° 12 m 1.8m 6-7m ENGL
- A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 6.25 m/s. The car is a distance d away. The bear is 21.3 m behind the tourist and running at 8.64 m/s. The tourist reaches the car safely. What is the maximum possible value for d? Vbear Number i Vtourist UnitsCor Part C Find the average velocity over the third 2.0-s time interval, 4.0-6.0 s Express your answer to two significant figures and include the appropriate units. ? HA m 1.0 Figure 1 of 1 Previous Answers Request Answer Submit 30 Incorrect; Try Again; 4 attempts remaining 25 E 20 15 Part D 10 Find the average velocity over the fourth 2.0-s time interval, 6.0-8.0 s 5 Express your answer to two significant figures and include the appropriate units. 0 2 4 6 8 ? HA Time, t (s) Position, x (m) SPlease answer parts a-c