1) If an object has a velocity of 20 m/s and a momentum of 35 kg●m/s, what is its mass? 2) A ball is kicked with a 60° angle and a velocity of 28 m/s. Find the vertical component of the ball’s velocity. 3) A soccer ball is kicked with a 38° angle and a velocity of 23 m/s. Find the horizontal component of the ball's velocity. 4) A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?  5) At the highest point of the trajectory of a projectile, which quantity is zero? 6) What is V0 in the formula of projectile motion? 7) Vertical component of projectiles is also called as ____________. 8) In launch angle lab, changes in the rotation of the marble launcher were measured in ______ 9) A biker with a mass of 80 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum? 10) A 4 kg cart has a momentum of 16 kg m/s. What is its velocity? 11) Determine the momentum of 2,000-kg car moving northward at 20 m/s. 12) 0.450 kg cart moving at 0.600 m/s has how much momentum? 13) Who was the first described projectile motion as having two components: horizontal and vertical? 14) Momentum has equivalent units of _________________. 15) If you are trying to find the horizontal component (Vx) of a projectile's velocity, what trigonometry function would you use? 16) If you are trying to find the vertical component (Vy) of a projectile's velocity, what trigonometry function  would you use? 17) Horizontal Component of projectile is also called as ________________. 18) What force acts in the y direction that causes an object to travel in a parabolic arc? 19) What is the path of a projectile called? 20) What is the shape of the projectile? 21) As projectile moves up, its velocity ________ while its acceleration remains _____________________. 22) If you throw a baseball straight up, what is its velocity at the highest point? _____ m/s 23) What is the horizontal acceleration of a projectile?  24) What is the vertical acceleration of a projectile? 25) What is the formula of time in projectile motion? 26) What is the formula of distance in horizontal motion? 27) What is the formula of distance in vertical motion? 28) What is the formula of velocity in vertical motion? 29) What is the formula of velocity in horizontal motion? 30) If a projectile is launched horizontally from a height of 15 m, how long will it take to hit the ground?m/s. Find the horizontal component of the ball’s velocity. 31) A plane flying horizontally at 150 m/s drops a crate. When the crate strikes the ground 15 seconds later, what is the magnitude of the horizontal component of its velocity? 32) A bullet is fired horizontally at a height of 1.5 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground? 33) What is the standard unit of weight? 34) What is the standard unit of mass? 35) What is the standard unit of time? 36) What is the standard unit of angle? 37) What is the standard unit of acceleration? 38) What is the acceleration due to gravity? 39) What is the standard unit of velocity? 40) What is the standard unit of distance? 41) What is the standard unit of momentum? 42) Which has more momentum: a car moving at 20 mph or a bike moving at 15 mph? 43) What is the momentum of a bird with a mass of 0.020 kg flying at 30 m/s? 44) A 5 kg cart has a momentum of 38 kg▪ m/s. What is its velocity? 45) In the momentum equation, how do you calculate mass? 46) In the momentum equation, how do you calculate velocity? 47) A 5.5 kg ball moving at 4 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision? 48) An object with a mass of 2000 kg at 5 m/s has what momentum? 49) An object with a mass of 5000 kg at rest has what momentum? 50) If an object has a momentum of 70 kg▪m/s and a mass of 50 kg, what is it's velocity? 51) If an object has a velocity of 18 m/s and a momentum of 38 kg▪m/s, what is its mass? 52) An object has a mass of 12 kg, a displacement of 12 m, and a time of 50 s, what is its momentum? 53) What is a PUSH or PULL of an object? 54) What is the property of a moving object that causes it to keep moving? 55) A 15 kg basket has a momentum of 40 kg m/s. What is its velocity? 56) A toy truck has a mass of 16 kg. If it is moving at a velocity of 5 m/s, what is it's momentum? 57) What is the momentum of a 60 kg girl moving at a speed of 5.3m/s? 58) What is the momentum of a 70 kg boy moving at a speed of 7.5m/s? 59) If a person is moving with a velocity of 35 m/s and has a momentum of 350 kg*m/s, what is the person's mass? 60) What force acts in the y direction that causes an object to travel in a parabolic arc?

Physics GRADED RECITATION

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