Last time now, with d = 2.95 m. You start the block on the track at ro the block from rest and let it slide down. What is the maximum valu which you can release the block from rest and have it leave the track
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- You throw a baseball directly upward at time t=0 at an initial speed of 12.1 m/s. What is the maximum height the ball reaches above where it leaves your hand? Ignore air resistance and take g=9.80 m/s2 At what times does the ball pass through half the maximum height?In a women’s 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their maximum speeds, which they each maintain for the rest of the race. They cross the finish line simultaneously, both setting aworld record of 10.4 s. (a) What is the acceleration of each sprinter? (b) What are their respective maximum speeds? (c) Which sprinter is ahead at the 6.00-s mark, and by how much? (d) What is the maximum distance by which Healan is behind Laura, and at what time does that occur?A firefighter slides down a pole in a fire station with an acceleration of 5.29 m/s^2. If the firefighter starts at rest and slides for a distance of 3.6 m, what is his final speed right before reaching the bottom? m/s
- 3. a) A boy throws a stone straight upward with an initial speed of 15 m/s. What maximum height will the stone reach before falling back down? b) What would be the maximum height of the stone if the boy and the stone were on the surface of the Moon, where the acceleration due to gravity is only ⅙ that of the Earth’s?3. A rocket, initially at rest, is fired vertically upward with an acceleration of 10 m / s2. At a height of 0.50 km, the rocket engine shuts down. What is the maximum height the rocket reaches? choose an answer A B C D E 1.9 km 1.3 km 1.6 km 1.0 km 2.1 kmA sprinter in the 100 m dash accelerates for 1.5 seconds when the starting pistol goes off, before reaching the maximum speed of 9.1 m/s. (Keep in mind the world record for maximum speed is 10.49 seconds) A) What distance does she cover while she accelerates? B) What's her race time?
- A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 56.0 m/s2, until the fuel is used up after 12.40 s. What is the speed of the rocket at that moment? (Neglect air resistance.) From the time the fuel runs out, how long does it take for the rocket to reach its maximum height? (Use g = 9.8 m/s2)______ What is the speed of the rocket when it hits the ground?________A 9500-kg test missile blasts off vertically from the ground with a constant upward accelerationof 2.28 m/s^2. When it has reached a height of 550 m, its engines suddenly fail; the only forceacting on it is now gravity. a) What is the maximum height reached? b) How much time will elapse after engine failure before the rocket comes crashing down theground, and how fast will it be moving just before it crashes? c) Sketch a vs t, v vs t, and y vs t graphs of the rocket’s motion from the instant of blast-off tothe instant just before it strikes the ground.A springbok is an antelope found in southern Africa that gets its name from its remarkable jumping ability. When a springbok is startled, it will leap straight up into the air—a maneuver called a “pronk.” A particular springbok goes into a crouch to perform a pronk. It then extends its legs forcefully,accelerating at 35 m/s2 for 0.70 m as its legs straighten. Legs fully extended, it leaves the ground and rises into the air.a. At what speed does the springbok leave the ground?b. How high does it go? We are doing this for physics homework, and I am so lost right now. Can I get some step by step or explanation as how to do this please?
- A springbok is an antelope found in southern Africa that gets its name from its remarkable jumping ability. When a springbok is startled, it will leap straight up into the air—a maneuver called a “pronk.” A particular springbok goes into a crouch to perform a pronk. It then extends its legs forcefully,accelerating at 35 m/s2 for 0.70 m as its legs straighten. Legs fully extended, it leaves the ground and rises into the air.a. At what speed does the springbok leave the ground?b. How high does it go?A biker at speed 8m/s dropped his wallet the moment he passed by you. It took 2s for you to pick up the wallet at the spot. If your stamina allows you to sprint for only 5s, with a constant acceleration, what should be your minimum acceleration to catch up? a . 8.48 m/s^2 b. 4.48 m/s^2 c. 4.84 m/s^2 d. 8.44 m/s^2A sprinter starts from rest and accelerates to her maximum speed of 11.0 m/s in a distance of 9.7 m. (a) What was her acceleration? (b) If this maximum speed is maintained for another 89.1 m, how long does it take her to run 98.8 m?