A 9.0 N force and a 5.0 N force act on a body of mass 3.0 kg at the same time.
Calculate the maximum and minimum accelerations that can be experienced by the body.
A fairground ride ends with the car moving up a ramp at a slope of 25° to the horizontal as shown in Figure 1.
Figure 1
The car carrying its maximum load of passengers has a total weight of 9.7 kN.
Show that the component of the weight acting parallel to the ramp is about 4.1 kN.
The mass of the fully loaded car is 950 kg.
Show that the force in part (b) will decelerate the car at about 4.3 m s–2.
The ride owner decides to use a shorter ramp and to install brakes on the car. The additional decelerating force provided by these brakes is 3400 N. The car enters the ramp at 33 m s–1.
Calculate the new stopping time.
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