In Scientific Notation. 35 kilometers per hour. = 3.5 x 10 1 kilometers per hour. ≈ 2.1748 x 10 1 miles per hour. A family drove to a resort at an average speed of 30 km/h and later returned over the same road at an average speed of 50 km/h. Find the distance to the resort if the total driving time was 8 hours. One cyclist rides twice as fast as the other. In three hours, they are 72 kilometres apart. Find the rate of each cyclist. By that metric, the top five fastest players in the league last season were Kyle Walker (32 km/h), Marcus Rashford (31.7), Callum Wilson (31.3), Adama Traore (31.2) and Ben Godfrey (30.9). Bolt With a top speed of more than 355 km/h, Lamborghini Veneno is the fastest Lamborghini in the world. The supercar accelerates 0-100 km/h in 2.8 seconds, whereas 0-200 km/h comes as fast as 8.4 seconds. In addition, Lamborghini Veneno comes from 100 to 0 km/h under 32 meters. 1 √ 2 v. 2. Since the kinetic energy is 1/2 mv2, and the mass of car #1 is greater, then car #2 must be moving faster. If the ratio of m1/m 2 is 2, then the ratio of v 2 values must also be 2 . This means that the ratio of v2/v 1 must be the square root of 2 . Two stones , one twice the mass of the other, are dropped from a cliff. 50's: 4.50 mph (7.24 km/h) 60's: 3.97 mph (6.39 km/h) 70's: 3.91 mph (6.29 km/h) Use brief periods of fast walking with rest periods of slow to moderate walking; Start with shorter periods of time, as interval training can get intense; Skip a fast interval if you're struggling to finish; In Scientific Notation. 55 kilometers per hour. = 5.5 x 10 1 kilometers per hour. ≈ 3.41754 x 10 1 miles per hour. Weped SST - 77.2 mph. Hunter Quad 2 x 2 - 70 mph. Bronco Extreme Sport 11 - 70 mph - 4,499.00. Dualtron X2 Up - 69 mph - $7,700.00. Kaabo Wolf King GT Pro+ - 65 mph - $3,195.00. Nami Burn-E 2 MAX - 60 mph - $4,299.00. In the year 2018 alone, manufacturers sold more than 5 million electric scooters. Analysts predict that the At noon, Ship A is 150 km away west of Ship B. Ship A is sailing East at 35 km/h and Ship B is sailing North at 25 km/h. How fast is the distance between the ships changing at 4:00 pm? If ! is the distance between the ships, we need to find !"/!" when !=4ℎ. 3.7 km/h. Explanation: Let's call v the proper speed of the boat and v' the speed of the water in the river. When the boat travels in the direction of the current, the speed of the boat is: v + v' And it covers 50 km in 3 h, so we can write (1) When the boat travels in the opposite direction, the speed of the boat is. v - v' And it covers 50 km ZQbT.