A car has stable speed u0 = 20 m / s and begins to decelerate at a constant rate 4 m / s2. Its displacement during the 2nd second of its movement is:

a) 26 m b) 14 m c) 6 m

Choose the correct answer and justify it.

Helpp

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class

It's time for santa to deliver his presents. assuming he delivers presents all over the world, he has to travel about 75,000,000 miles. if he travels east to west, he can use the time zones to make christmas day last 31 hours. what speed, in miles per hour, must santa fly to get all of his presents delivered?