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- Help me please10) Graph interpretation & conversion: The v-t (velocity vs. time) graph for the motion of a car is shown. The car starts at the origin at the instant the motion begins (t = 0). Carefully draw the following two additional graphs below the given graph, making sure that the time axes use the same scale. a) Acceleration vs. time b) Position vs. time (Be very careful to depict whether the graph is linear, concave up, or concave down.) t₁ N܂ T3 tShort computation The position of an object as a function of time is given by x(t) = bt4 - ct² + et, where b = 7.9 m/s4, c = 9.42 m/s², and e = 6.58 m/s. What is the object's instantaneous acceleration a when t = 0.3 s? a = m/s² 4 Remember to include a "-" if the acceleration turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.
- II t. Position as a function of time of two moving objects is presented by the graph. Which of the following statements is true? А. Object I has a greater accelleration than object II B. Object I has a greater velocity than object II C. At time to they have the same velocity D. Object I has a smaller velocity than object II Е. Object II has a greater acceleration that object I3. You decide to flip a coin to determine whether to do your physics or English homework first. The coin is flipped straight up. a. What is the velocity of the coin at the top of its trajectory? b. If the coin reaches a high point of 0.25 m above where you released it, what was its initial speed? c. If you catch it at the same height as you released it, how much time did it spend in the air?PART A. SPEED, VELOCITY, AND ACCELERATION Little Mario plays with his remote control car, and generates the motion graph below. The car starts by moving east. 15.0 x (m) 10.0 5.0 -5.0 -10.0 -15.0 a. Identify section (s) where the car moves with constant velocity. b. Identify section (s) where the car moves west. c. Identify section(s) where the car speeds up. 18 Time (s)
- A ball is thrown vertically upward with a speed of 68 m/s. a.) How high does it rise? b.) How long does it take to reach its highest point? c.) How long does the ball take to hit the ground after it reaches its highest point? d.) What is its velocity when it returns to the level from which it started? e.) the velocity of the stone at t = 2.00 s. f.) the position of the stone at t = 2.00 s.64. Velocity of a probe A small probe is launched vertically from the ground. After it reaches its high point, a parachute deploys and the probe descends to Earth. The height of the probe above the ground 300t – 5012 is s(t) for 0 sts 6. t3 + 2 a. Graph the height function and describe the motion of the probe. b. Find the velocity of the probe. c. Graph the velocity function and determine the approximate time at which the velocity is a maximum.A stone is thrown vertically upward from the top of a tower that is 120m high with a velocity of 36m/s. a. Calculate the magnitude of the velocity just before it hits the ground b. Determine the maximum height that the stone will reach measured from the ground c. Solve the elevation of the stone from the ground after 8 seconds d. How long will it take to reach the highest point? e. How long will it take for it to hit the ground?
- Q3-A) The velocity versus time graph of a car is displayed in the right figure. For this figure, find the following: a) The instantaneous velocity of the car at t=1 s b) The instantaneous velocity of the car at t=3 s c) The instantaneous velocity of the car at t=5 s Time, s d) Average acceleration between 1.5 s and 2.5 s. Velocity, m/sBeautiful Day Activity 1 Answer questions on average speed Define average speed. A number of athletes are competing in a 400 m race. Calculate the average speed of a sprinter who completes a 400 m race in 53 s. Is the sprinter's speed equal to the average speed during the entire race? 2.2 Give a reason to support your answer. 13 Calculate how long (time) it takes another sprinter to complete a 400 m race with an average speed of 8,0 m.s-1. Calculate how far a car travels in 30 s at 15 m.s-1. A car travels for 12 s at 10 m.s-1 and then for 6 s at 15 m.s-'. Calculate Answers to n the average speed of the car. questions in given on pae Average velocity hust differs from distance so velocity differs from speed.QUESTION 33 a 0. t Choose the appropriate word choices below that correctly complete the blanks in the following three sentences: At the beginning, the object is at the origin and moving to the left. In the first half of its motion, the object moves to the left with velocity. Then, the motion of the object changes. In the second half of its motion, the in magnitude. object due to a acceleration that is CA. decreasing, speeds up, negative, increasing, B. constant, speeds up, positive, constant, C. constant, slows down, positive, constant, D. increasing, speeds up, negative, increasing, E. constant, speeds up, negative, constant,