B r = 72 m 27 m 40°, 18 m

Block A (m = 5 kg), seen in the figure, sits on a smooth surface and is attached by a slender rod to a ball-and-socket joint at B. If the moment and force shown are simultaneously applied to the block, what will the speed of the block be after 4 seconds (starting from rest)?

Define the term Zero slope?

Pr4. Two bodies are launched at the same time from two points A and B located at the same height. The distance between points A and B is d. One of the bodies starts from point A upwards with speed v1, while the other starts from point B towards point A with initial speed v2. What will be the minimal distance between the bodies during their motion? (The gravitational acceleration is g, neglect the air drag. The bodies do not reach the ground before the moment of the minimal distance.)

Answer both questions please!

The three masses in the figure are different. The planes do not have friction with the masses and the plane of mass 3 corresponds to a quarter of a circumference. All three masses are released at the same time. The masses m2 and m3 travel the same distance. The first mass that will reach the bottom of the ramp will be:   m1 m2 m3 m2 and m3 m1 and m2 m1 and m3 they will all arrive at the same time

The 0.31-kg mass slides on a frictionless wire that lies in the vertical plane. The spring attached to the mass has a free length of 80 mm and stiffness of 0.13 N/mm. Calculate the smallest value of the distance b so that the mass will reach the end of the wire at B after being released from rest at A.