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23 Nov 2019
3.) A rifle of 3.0 kg is fired. The velocity of a 10-gbulletat the muzzle is 300 m/s. It takes 0.005 s for the bullet toreachthe muzzle. Find a) the average force acting on the bullet;b) therecoil velocity of the rifle.4.) A 1500-kg car at rest at a stop sign is hit frombehind bya 2500-kg truck at a speed of 10 m/s. They are entangledand skidtogether for a distance of 4.8 m. Find a) their speedright afterthe collision; b) the acceleration during the skid.5.) A 3200-kg satellite revolves in a uniform circularmotionaround the Earth at a height of 500 km. Find a) thegravitationalforce due to the Earth; b) the speed of thesatellite.(The mass ofthe Earth is 5.98 x 1024 kg andthe radius of the Earthis 6370 km.)
3.) A rifle of 3.0 kg is fired. The velocity of a 10-gbulletat the muzzle is 300 m/s. It takes 0.005 s for the bullet toreachthe muzzle. Find a) the average force acting on the bullet;b) therecoil velocity of the rifle.
4.) A 1500-kg car at rest at a stop sign is hit frombehind bya 2500-kg truck at a speed of 10 m/s. They are entangledand skidtogether for a distance of 4.8 m. Find a) their speedright afterthe collision; b) the acceleration during the skid.
5.) A 3200-kg satellite revolves in a uniform circularmotionaround the Earth at a height of 500 km. Find a) thegravitationalforce due to the Earth; b) the speed of thesatellite.(The mass ofthe Earth is 5.98 x 1024 kg andthe radius of the Earthis 6370 km.)
Keith LeannonLv2
31 Aug 2019
