An 94.0 kg spacewalking astronaut pushes off a 660 kg satellite, exerting a 80.0 N force for the 0.520 s it takes him to straighten his arms.

Two crates, each of mass 654 kg, are placed as shown in the bed of a 1397-kg pickup truck. Assume g=9.8 m.s²² 2.8 m 1.7 m A B 1.8 m 1.2 m 0.75 m Determine the reaction at each of the two rear wheels in N.

Suppose that an astronaut in space while working in the Hubble Telescope in space hitsaccidentally his thumb with the weightless hammer. Would it hurt? Explain.

A 30.3 kg boy and a 55.8 kg girl are on the surface of a frozen lake, 14.0 m apart. Using a rope, the boy exerts a horizontal 5.30 N force on the girl, pulling her toward him. Calculate the magnitude of the boy's accelerátion. Submit Answer Tries 0/10

A 200 N force due East and a 80N force due West both act on an object.  The object accelerates due East at 6N/kg. The mass of the object is

Find the tensions in the two cords and the accelerations of the blocks as shown in the figure iffriction is negligible. The pulleys are massless and frictionless, mı=215g,m2=500g and m3=365g. m2 m3

Three blocks are connected by light ropes as shown. There is no friction in the problem (from the table or the pulleys). The mass of the middle block (resting on the table) is 0.231 kg. Note that there are two separate/independent ropes, one on the left and one on the right of the middle block. 4.00 kg 2.00 kg a) (10 pts) In which direction will the middle block accelerate? b) (10 pts) find the magnitude of the acceleration of the middle block. (Hint: Write down 3 equations, one for each block. Are the magnitude of their accelerations the same?)

22. Two forces of F₁ = 750 (î – ĵ) N and F₂ = ¹500 (î-Ĵ) N act on an object. Find the third force 3 that is needed to balance the first two forces.

If a man weighs 850N on the Earth, what would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? A 00-kg object undergoes an acceleration given by = (4.00 î + 9.00 ĵ) m/s2.  Find the resultant force and its magnitude acting on the object.

A 1am playing tug-o-war with my three nephews. The youngest in pulling with a force of 189 N. The middle child is pulling with a force of 334 N. The oldest is pulling with a force of 657 N. I am on a team with the youngest child. If I want to keep the four of us in equilibrium, how hard (in newtons) must I pull?