Science

• parabolic - is the shape of trajectory of a projectile
• The impact time is longer, thus resulting in a lesser impact of force - this is how airbags and seatbelts helps
• It requires greater force to stop a moving body with higher momentum - this is the relationship between momentum and impulse
• The dump truck because it has larger change in momentum - this has the greater momentum
• m/s - represents the SI unit for speed
• 9.8m/s² - is the value of acceleration due to gravity
• motorcycle - has the least momentum
• projectile - is referred to as an object that is given an initial velocity and it's then acted solely upon by gravitational force
• If the car has lesser velocity - the need for a lesser amount of stopping force
• highest point - at which point during projectile's motion is it's vertical equal to zero
• two object travelling away from each other - is NOT true about collision
• Time - changes at a constant rate in a body in uniformly accelerated motion
• Horizontal and vertical motion - composed the two linear motion of a projectile
• equal - happens to the momentum (Russian)
• Acceleration is not zero and velocity changes at a constant rate - are TRUE about an object in uniformly accelerated motion
• A barking dog - doesn't exhibit UAM
• It restricts the speed of vehicle - is TRUE about speed limits
• momentum - is a term used to describe a moving object, and it is expressed as a product of mass and velocity
• Impulse - is the product of force and time
• mass and velocity - this is where the momentum of an object depends
• heavy truck - has more momentum
• The time interval for stopping is less - this is how it's possible (EGG)
• momentum - the impulse experienced by a body is equal to the change
• change in impulse = change in momentum - the relationship of impulse and momentum
• All of the above - shows how momentum and impulse are related
• A 50kg man running - has a greater momentum and magnitude
• Haystack - could give the least force imof impact to the car
• constant - if the momentum lost by one object is gained by another object
• 30° - at what degree should a water hose br pointed in order for the water to land with the greatest horizontal range
• 45° - should be the angle of the ball in order to be hit to reach the same distance
• the object is accelerated - is the TRUE abt the object
• the car - undergoes the greater change in momentum
• huge truck - experiences a greater impact ( 3rd Law of Motion )
• Elastic Collision - It is one in which the total kinetic energy of the system does not change and colliding objects bounce off after collision
• negative - should be the velocity of an object that is in downward position in free fall
• If the car has lesser velocity - is the need for a lesser amount of stopping force
• Direction - indicates the negative and positive in free fall
• upward - must be the direction of an object in free fall if it's positive
• Inelastic collision - it is e in which the total kinetic energy of the system changes