At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s². (a) How far does she travel in the next 5.00 s? (b) What is her final velocity?
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- Nerve impulses in giant axons ofthe squid can travel with a speed of 25.0 m>s. How fast is this in(a) ft>s and (b) mi>h?A ball is thrown straight up with an initial velocity of 40 m/s, so that its height (in meters) after t seconds is: h(t)=2t(20-t) I don't have answer pages at the end, so ill need an explanation as well, please. ThanksTwo airplanes leave an airport at the sametime. The velocity of the first airplane is680 m/h at a heading of 51.6◦. The velocityof the second is 640 m/h at a heading of 176◦.How far apart are they after 2.3 h?Answer in units of m.
- A baseball is hit almost straight up into the air with a speed of 25m/s Estimate (a) how high it goes, (b) how long it is in the air. (c) What factors make this an estimate?An object's position in the as a function of time obeys the equation; x (t) = 3t – 2t³ + 1.5t where all constants have proper SI Units. What is the speed of the object in the x direction at t = 1.75 seconds?An object's position as a func of time is given by ; x(t) = - 200 (( t + 1 ) ^ - 1) + 6t^2. (Assume constants have proper SI Units) What are the object's instantaneous velocity at t = 3.00 seconds ? Answer = 48.5 m/s
- Find the following for path B in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish.A car moving with a speed of 30 mi/hr reaches the top of a hill. Asit goes down the hill, its speed increases to 45 mi/hr in 1.5 min. (a) What is theacceleration of the car and (b) what distance does it travel in this time?An object's position as a func of time is given by ; x(t) = - 200 (( t + 1 ) ^ - 1) + 6t^2. (Assume constants have proper SI Units) An object's instantaneous velocity at t = 3.00 seconds is 45.5 m/s What is the object's average velocity between t = 0 and t = 3.00 seconds? Answer is 68.0 m/s^2 What is the object's average acceleration between t = 0 and t = 3.00 s Answer : - 50.5 m/s^2
- A mouse wants to jump onto a table that is [y] cm high in order to escape from my cat Jackie. Standing [x] cm from the table it jumps, leaving the ground at an angle of [th] degrees, landing on the edge of the table. What is the initial speed of the mouse in meters per second?At the end of a race a runner decelerates from a velocity of 8.70 m/s at a rate of 2.10 m/s. (a) How far in meters does she travel in the next 4.60 s? (Assume the deceleration of 2.10 m/s is constant over the full 4.60 s.) X m Enter a number. (b) What is her final velocity in m/s? m/s (c) Evaluate the result. Does it make sense?My pug/bulldog mix, Georgia, who is blind and deaf, gets a whiff of her dinner. As soon as it registers to her that it's dinnertime, she runs 4.12 meters from the middle of our living room to our kitchen, where she is satiated with her grub. If it takes her 4.45 s to get to the kitchen, what was her speed in m/s to the nearest hundredth?