The masses of blocks a and b in fig. p5.126 are 20.0 kg and 10.0 kg, respectively. the blocks are initially at rest on the floor and are connected by a massless string passing over a massless and frictionless pulley. an upward force is applied to the pulley. find the accelerations of block a and of block b when f is (a) 124 n; (b) 294 n; (c) 424 n.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

explanation:

to push or pull an object in a certain direction is known as force. a force in moving an object from one place to another.

force depends on the mass of an object. so, more is the mass of an object more will be the force required to move the object.

thus, we can conclude that the use of force to move an object is push or pull.