< input name =" button2" onclick ="document.animator.pause()"kind="switch"worth=" Pause "> The trajectory of a projectile with a first speed at an angle over the straight. Virtual reality stands for the resultant speed
, Vv stands for the upright rate, and also Vh the straight rate.
) Use the adhering to 2 kinematics formulas to reveal that the above projectile adheres to an allegorical course.
Δy=v i Δt+1/2g
Δt 2 Δx =v ave Δt2
) A space-flight projectile is released in an allegorical
trajectory. An astronaut in this method pill really feels lightweight. (a)Why?(b) In what feeling is he insubstantial? Responses