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- Find the maximum magnitude of force on the mass.In a head-on collision, a car stops in 0.14 ss from a speed of 11 m/sm/s . The driver has a mass of 90 kgkg , and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fraction of a second?On an aircraft carrier, a jet can becatapulted from 0 to 155 mi>h in 2.00 s. If the average force exertedby the catapult is 9.35 * 105 N, what is the mass of the jet?
- a .333 kg ball, initally at rest moves a distane of 5.0 m in 1.25 s. what is the magnitude of the average net force of the ball?In a ballistics test, a 52-g bullet hits a sand bag and stops after moving 1.34 m. If the initial bullet velocity was 55 m/s what was the magnitude of the average force of friction.A parachutist is falling at a steady rate of 6 m/s. If thecombined mass of the parachutist and the parachute is 90 kg,what is the resisting force exerted by air?
- A bucket of water with a mass of 5 kg is accelerated upward by cord of negligible mass having a breaking strength of 75 N. If the bucket has an initial velocity of 2 m/s, how far will the bucket be raised in 5 s?A dated box of dates, of mass 5.00 kg, is sent sliding up a frictionless ramp at an angle of to the horizontal as a function of time t, the component vx of the box’s velocity along an x axis that extends directly up the ramp.What is the magnitude of the normal force on the box from the ramp?A 4.0 g bullet exits the muzzle of a rifle with a velocity of 338 m / s. What force (assumed constant) is exerted on the bullet as it travels through the barrel of the 0.83-m long rifle?
- A drone is being directed across a frictionless ice covered lake. The mass of the drone is 1.50 kg, and its velocity is 3.00i ^ m/s . After 10.0 s, the velocity is 9.00i ^ + 4.00j ^ m/s . If a constant force in the horizontal direction is causing this change in motion, find (a) the components of the force and (b) the magnitude of the force.A 2.7 kg mass is initially t rest while upon a horizontal surface. An applied force f 16 N is exerted on the mass at an angle of -29 degrees with respect to the +x direction. If the coefficient of kinetic friction is 0.213 what is the magnitude of the acceleration produced?A car of mass 907 kg coasts on a level road, starting with an initial speed of 14.9 m/s and coming to rest 14.8 s later. Find the frictional force acting on the car.