physics
posted by prabh .
A car traveling 59 km/h accelerates at the rate of 8 m/s2. How many seconds are required for the car to reach a speed of 90 km/h? ENTER NUMBERS ONLY (ONE DECIMAL PLACE). NO UNITS

First convert 59 km/h and 90 km/s to m/s.
59 km/h = 16.39 m/s
90 km/h = 25.00 m/s
Change in V = 8.61 m/s
8 m/s^2*T = 8.61 m/s
Solve for T, the time spent accelerating
Respond to this Question
Similar Questions

Physics
A car with good tires on a dry road can decelerate at about 5.0m/s/s when braking. If the car is traveling at 55miles/hour, how much time does it take the car to stop? 
physics
A car traveling at 7.3 m/s accelerates 4.5 m/s2 to reach a speed of 11.0 m/s. How long does it take for this acceleration to occur? 
Physics
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.8 m/s2 for 4.5 seconds. It then continues at a constant speed for 9.9 seconds, … 
AP Physics
1. A car is traveling down the road at a constant speed of 11 km/h. At time zero it is forced to stop. The driver slams on the brakes and the car travels 18 m as it uniformly accelerates, coming to a stop. The car remains at rest for … 
physics
A car accelerates uniformly in a straight line from rest at the rate of 3.2 m/s2. What is the speed of the car after it has traveled 58 m? 
Physics
The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A  The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B  The car is at rest for 20 seconds. … 
Physics
The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A  The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B  The car is at rest for 20 seconds. … 
physics
The Graph above shows the speed of a car traveling in a straight line as a function of time. The car accelerates uniformly and reaches a speed Vb of 4.00 m/s in 8.00 seconds. Calculate the distance traveled by the car from a time of … 
physics
A car traveling at 6.5m/s accelerates 3.6m/s2 to reach a speed of 16.0 m/s. How long does it take for this acceleration to occur? 
Physics
A car traveling 60km/hr accelerates at the rate of 2.0m/s2. How much time is required for the car to reach a speed of 90km/hr?