a hot air balloon is traveling vertically upward at a constant speed of 2.8 m/s. when
it is 29 m above the ground, a package is
released from the balloon.
after it is released, for how long is the
package in the air? the acceleration of gravity
is 9.8 m/s^2.
answer in units of s

what is its speed just before impact with the
ground?
answer in units of m/s

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Ineed the answers for these promblems i have

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .