1. (15 mins
An arrow is fired directly horizontal off a cliff that is 10.0 meters tall with a velocity of 65.5 m/s,
how long is the arrow in the air?
(a) 14 s
(b) 1.38 s (c) 1.43 s
2. Approximately how far will an object near Earth's surface fall in 3.0 s?
(a) 9.8 m (b) 44 m (c) 22 m
3. A bullet is fired at an angle of 45º. Neglecting air resistance, what is the direction of
acceleration during the flight of the bullet?
(a) At a 45° angle (b) upward
(d) downward
4.
In the absence of air resistance, the horizontal component of velocity for a projectile such as a
bullet is (a) variable (b) remain constant (c) change
5. The projectile follow (a) straight path (b) upward (c) curved path in the air.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

v 154.9= 0.9 length length s little over 154.9cm

i guess it’s a and b

it would be c. predictability