13. a hiker walks 200 m west and then walks 100 m north. in what direction is her resulting displacement?

Modify the equation fδt=δ (mv) to find the force of friction.

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply