A vehicle of mass 700kg is on a smooth horizontal plane. The brakes are applied when his speed is 72km/h and the vehicle stops after traveling 50m. Determine the intensity of the force exerted by the brakes
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- An ambulance moves with a speed of magnitude 140 km/h, it moves by sounding its siren with a frequency of 850 Hz. There is an observer moving away from the position of the ambulance with a speed of 25 km/h. (Take the speed of sound to be 340 m/s).Determine the frequency perceived by the observer when the ambulance moves in such a way that it approaches the observer's position.The phenomenon of damping results in decrease in a.Frequency b.Velocity c.Amplitude d.Wavelength The ______ of a particle is equal to the total work that particle can do in a process of being brought to rest. a.Total energy b.Kinetic energy c.Potential energy d.Mechanical energy What will happen to the Kinetic enegy if it is a completely inelastic collision?a.It is partially conserved. b.It is lost to maxim value c.It is gained from the loss of potential energyd.It is fully conserved.A spring of negligible mass stretches 3.46 cm from its relaxed length when a force of 5.4 N is applied. A 0.8 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x=5. cm and released from rest at t=0.(f) Determine the displacement x of the particle from the equilibrium position at t=0.50 s(g1) Determine the velocity of the particle when t=0.50 (g2) Determine the acceleration of the particle when t=0.50 s