physics
posted by Nialleen .
a jeepney of a mass 1500kg is travelling at a speed of 20m/s (about 70km/h)
a. what is the kinetic energy of the jeepney?
b.suppose the driver suddenly steps on the brakes. if the force is 7500 newtons, what will be the distance traveled by the jeepney before it stops?

a. KE=1/2 m v2
b. Force*distance=1/2 m v^2 
ow btw what's the difference between the two formulas?
Respond to this Question
Similar Questions

physics
what is the kinetic energy of the jeepney 
Physics
A car is initially travelling at a constant speed of 20 m/s along a highway. Suddenly, the driver applies the brakes, causing the car to accelerate at 5.0 m/s^2. If the driver applied the brakes 0.50s late, determine the distance … 
Basic Physics
Someone help! A jeepney moves along a straight line at an average speed of 10 m/s. What is the distance traveled by the jeepney in 2.5 h? 
Integral Calculus
A jeepney's velocity over time in ft/sec as it moves along the xaxis is governed by the function v(t)=3t^210t+15. If the jeep's position at t= 1 second is 8ft, what is the total displacement made by the jeepney from t=0 to t=5sec? 
physics
a 1500kg car travelling east with a speed of 20m/s collides at an intesection with a 2500kg van travelling south at a speed of 15m/s.The vehicle undergoes a perfectly inelastic collision, and the wreckage slides 6m before coming to … 
physics
a jeepney from rest accelerates unit fromly covers the time 3.25s. and covers in 15m. Determine the acxeleration of jeepney 
General Mathematics
A jeepney ride costs P8.00 for the first 4 km and each additional integer km adds P 1.50 to the fare. Use a piecewise function to represent the jeepney fare in term of the distance d in km. 
General Mathematics
A jeepney ride costs P8.00 for the first 4 kilometers, and each additional integer kilometers adds P1.50 to the fare. Use a piecewise function to represent the jeepney fare in terms of the distance (d) in kilometers. 
Math
A jeepney ride costs 8 pesos for the first 4 km and each additional integer km add 1.50 pesos to the fare. Use a piecewise function to represent the jeepney fare in terms of the distance (d) in km. Please give the solution. Thank you 
Physics
The driver in a car of total mass 800kg and which is travelling at 20m / s suddenly observes a stationary dog in his path 50m ahead . if the car brakes can exert a force of 2000N, what will likely happen