A machine qun fors 11 bullets/s, each of the eped, to each bullet x g. mass 16 *: 24 cmst, then foxce of recoil is C) 1o0 lyne (b) 2000 dyne (c) 4224 dy ne (C) (A) 4230 dyne
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- One of the safety features present in automobiles is an airbag. During a collision or an accident, the bag automaticallyinflates and provides a high probability of sparing a passenger or driver from extreme injury. How do airbags ensurethe safety of passengers/drivers during an unexpected impact?532 mm' (5.32x 10" m] (a) 1130 g em (1.13x 10* kg m³] 1.013 Mg cm's [1.013 x 10' kg m' s²] (b) (c) O WhatsApp Fahira Skb: tq e The initial velocity of particle is 5.0 x10" ms in the positive O,- direction. After 2.0 s, the increaIse in its velocity is 2.3x10" mSin the positive O, direction. Calculate the magnitude and direction of the velocity of the particle after 2.0 s. [8.85 x 10° ms", 55.59 above positive x-axis] 10. П. (а) A piece of metal measure 2mm x 5 cm x 1.5 m and its mass is 1.35 kg. Calculate the density of metal in kg m'. [9.0x 10 kg m) (b) The speed limit on the highway is 110 km h". What is the speed limit in ms' [30.6 m s'] ii. m min' (1833 m min"] i. A force of 200 N makes an angle of 0 with the horizontal and it has a magnitude of 60 N in the y-component. Find the magnitude of horizontal component.[191 N] 12. (a) A tricycle pulls a cart with a force of 100 N. The cable connecting the cart to tricycle makes an angle of 50° to the horizontal surface. Find the (b) i.…A 0.025 kg bullet is fired from a gun with a velocity of -230 m/s. If the gun has a mass of 0.26 kg, what is the recoil velocityof the gun?
- What is the force applied to a ball if the momentum increase by 1.91kgm/s every 3.67s?:SA DIRECTIONS Read the prcblen carefuty dentify the given quantities and determine what is required Car A of mass 2000 kg moving at 72 kmr, east tres to overtake car B of mass 1250 kg moving at 60 km/hr, east Car A coldes with car B The cars stick together ater collision. Find ther veiocity after colisionAn object has a kinetic energy of 275 J and a momentum ofmagnitude 25.0 kg ? m/s. Find the (a) speed and (b) mass ofthe object.
- Two cars are involved in a crash. (No one was hurt in the accident.) If the total momentum is 4120 kg•m/s after the collision, what is the total momentum before the collision?Particles are moving speeds of v₁ = 5.2 m/s. After the collision a+ and V₂=0 and m₂ = 2m₁. is observed to be moving mass mi f 90° relative to its direction Prior to e collision is elastic. an angle the Collis Eine a Suitable coordinate system and determ may final velocities (including direction) of each Partille, be useful to remember that cos(20)= Cos²-si- 915038) A uO.okg bamb ŏ at 10 mis in the bombis in the meuing Sdirection whent it s into 3-piecs at 10mis neyalive A direction whent it explodes of uskg When it explodespiece one arith a mas hos a velocity of 20.0m/s inthe ngarlie of lo kg amd has t direction piece teo has a mas) a belocity of C1Bi =20) mla. Datermine the celauity the walauity of the third of the boumb in the telirecton piece ster Hhe explosion, Repert your ansuer se in mis
- Many individuals with fall pollen allergies can point a finger at ragweed as the cause. If a single grain of ragweed pollen has the mass of .012ug what velocity must it travel it exhibit brogloes wavslwngth of 6.33x10^-7mA propane tank explodes into three pieces of equal mass. After the explosion, one of the masses has a velocity of 10 m/s [S]. If a second mass moves at a velocity of 6.0 m/s [N 50o W], what is the velocity of the third mass?A car with a mass of 1500000 g has a velocity of 10 m/s, determine its momentum. Likewise, determine the momentum of a 0.200 kg ball with a velocity of at 40 m/s.