A man pushes a balikbayan box on a rough surface at a speed of 0.05m/sec. If the box weighs 120kg and the coefficient of friction of the surface is 0.1, determine the distance traveled after 1 minute at force of 300N. *

1. A driver is travelling  at 50 mph is 80 m from a wall ahead, if the driver applies the brake immediately at t=2 secs, and begins slowing down at 10m/s^2.a. Find the distance from the stopping point to the wall.b. Determine the braking time or the time during deceleration.c. Determine the average skid resistance, assuming brake efficiency of 70%.   2. A two lane road with design speed of 80 kph has horizontal curve of radius 480 m. Design the rate of superelevation. By how much should the outer edges of the pavement be raised with respect to the center line, if the pavement is rotated with respect to the center line and the width of the pavement at the horizontal curve is 7.5 m?

Question 3: Determine the maximum constant speed at which the pilot can travel around the vertical curve having a radius of curvature p = 800 m, so that he experiences a maximum acceleration an = 8g = 78.5 m/s?. If he has a mass of 70 kg, determine the normal force he exerts on the seat of the airplane when the plane is traveling at this speed and is at its lowest point. p = 800 m

4. A car starting from rest speeds up to 15m per sec with a constant acceleration of 1.2 m per sec per sec. If the total distance traveled is 300 m, find the total time required.

A 1300 kg passenger vehicle originally traveling on a straight and level road gets onto a section of the road with a horizontal curve of radius 260 meters. Assume that the vehicle is traveling at sea level and has a front cross-sectional area of 3.50 sq. m. If the vehicle was originally traveling at 60 kph, calculate the following: 1. Additional horsepower on the curve the vehicle must produce to maintain the original speed2. Total resistance force on the vehicle as it traverses the horizontal curve3. Total horsepower

A car is being towed up on an incline with an angle of 15° with the horizontal. Find the force (parallel to the incline) needed to pull the car with an acceleration of 1.2 . The car weighs 20 kN. Neglect friction.

1. A block resting on a horizontal ground weighs 80 N and inclined force with a slope of 5V:12H is applied to the block. Determine the force that will give the block a velocity of 12 m/s after traveling a distance of 40 m. Coefficient of kinetic friction is 0.26.

A student releases a system on an incline as shown. The coefficient of friction of static friction between the 20kg box and the surface is 0.28 and the coefficient of kinetic friction is 0.16. Neglect drag. What is the magnitude of maximum static friction between the block and the surface in this situation? 47.1 N What direction is the friction on the 20kg block? up-left 20kg What direction will the 20kg block slide? 7.6kg neither What is the magnitude of the friction? 17.9 N 31° What is the magnitude of the net force on the system? 66.24 N What is the magnitude of the system's acceleration? 2.4 m/s? What is the tension in the string? 92.72 cannot be det check answers Rain to

Dynamics of Rigid Bodies Answer the question with FBD of yhe figure

31. A car travelling at 70 kph requires 80 m to stop after the brakes have been applied. What average coefficient of friction was developed between the tires and the pavement? fuv a. 0.61 b. 0.24 C. 0.32