Researcher often use force plates to measure the forces that people exert against the floor during movement. A force plate works like a bathroom scale, but it keeps a record of how reading changes with time. Figure below shows the data from a force plate as a woman jumps straight up and then lands. TITE Still Push-off Landing Still In air F (N) 1500 1000 500 t (s) 0.25 s a) What was the vertical component of her acceleration during push-off? b) What was the vertical component of her acceleration while in the air? c) What was the vertical component of her acceleration during the landing? d) What was her speed as her feet left the force plate? e) How high did she jump?

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The forces are acting on a 0.25-kg object as shown. What is the x-component of the object’s acceleration, in m/s2? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive.

Inertia by definition is the propter of things to resist changes in motion. This quantity is directly related to an object’s mass, or how much of ‘something’ and object is made of. Therefore, could Inertia change if your object were to travel into space? Could it change if your object was on the moon? If not, explain how you could change an object’s inertia.

Researchers often use force plates to measure the forces that people exert against the floor during movement. A force plate works like a bathroom scale, but it keeps a record of how the reading changes with time. Shown is the data from a force plate as a woman jumps straight up and then lands.a. What was the vertical component of her acceleration during push-off?b. What was the vertical component of her acceleration while in the air?c. What was the vertical component of her acceleration during the landing?d. What was her speed as her feet left the force plate?e. How high did she jump?

A- Calculate the weight of a person who has a mass of 100kg. ____kg m/s/s  B-  A grocery bag can with stand a force ( weight ) of 49N before it rips apart, how many kilograms of apples can it safely hold? ____kg. F/a =m

1. A 75 kg rock climber hangs from a cliff. a) Draw a force diagram for the climber. b) Find the tension in the rope.

A worker pulls a crate of mass, m, via a uniform, massless cable that is attached to the crate at an angle, θ, above the horizontal. The resultant tension in the cable is T. What is the normal force acting on the crate? a. mg b. mg + Tsinθ c. mg - Tcosθ d. mg - Tsinθ e. Tsinθ