A rifle has mass M = 3 kg and fires a bullet of mass m = 10 g with muzzle velocity u = 700 ms'. What is the recoil velocity v of the gun? From what height h would you have to drop the rifle on to your shoulder to feel the same kick?
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- A 4.0-g bullet leaves the muzzle of a rifle with a speed of 328 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.76-m-long barrel of the rifle?A 0.05 kg ball strikes a wall with a velocity v1 = -25 m/s and bounces back with a velocity v2 =5 m/s. If the collision lasts 0.2 s, then find the average force (in N) exerted on the ball.A 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the velocities shown, calculate the mass of the white ball, Ignore friction and air resistance. 0 m/s 4 m/s 1.4 m/s 5.7 m/s
- A 6.0 kg car is sitting on a floating 10 kg container in a lake and initially at rest 1.2 m away from the park. If the cat jumps back to the park, what is the minimum recoil speed of the box in the opposite direction? Assume the water and air friction are negligble and the dog travels in projectile motion.A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides head-on with a padded goalpost and experiences a backward force of 1.76 × 104 N for 5.55 × 10–2 s. Calculate the final velocity in the horizontal direction of the rugby player, in meters per second. vf =A baseball of mass m1 = 0.31 kg is thrown at another ball hanging from the ceiling by a length of string L = 1.05 m. The second ball m2 = 0.87 kg is initially at rest while the baseball has an initial horizontal velocity of V1 = 3.5 m/s. After the collision the first baseball falls straight down (no horizontal velocity.) What is the angle that the string makes with the vertical at the highest point of travel in degrees?
- Hello, can you also please include the formula that you used to solve this problem? Thank you!A 4.00 g bullet has a muzzle velocity of 290 m/s when fired by a rifle with a weight of 35.0 N. (a)Determine the recoil speed (in m/s) of the rifle. Answer________m/s (b) If a marksman with a weight of 800 N holds the rifle firmly against his shoulder, determine the recoil speed (in m/s) of the shooter and rifle. Answer________ m/stwo balls, m1= 2 kg and m2= 5 kg, can slide without friction on a rod. a spring with a rigidity coefficient of k= 1000 N/m was connected to the ball with a mass of m2. since v1= 14 m/s and v2= 0; a) find the maximum compression that will occur in the spring when the balls collide. b) find the final speed of the balls after the collision. m, m2 k V1