1 The two objects stick together after the collision and move with a common velocity v f. 2  Assume the motion is along the x-direction. 3  We then have. 4  m 1 v 1 + m 2 v 2 = (m 1 + m 2)v f. 5  m 1 is the mass of the bullet, v 1 its initial velocity, m 2 is the mass of the block, v 2 its initial velocity.
The agreement based on overt grammatical categories as above is formal agreement, in contrast to notional agreement, which is based on meaning. For instance, the phrase The United Nations is treated as singular for purposes of agreement even though it is formally plural.he agreement based on overt grammatical categories as above is formal agreement, in contrast to notional agreement, which is based on meaning. For instance, the phrase The United Nations is treated as singular for purposes of agreement even though it is formally plural.
The distinct difference between a formal contract and an informal contract is its enforceability in a court. An enforceable contract is one that contains certain elements, like offer, acceptance, and consideration, and is in written form.An informal contract does not contain the same elements and can be oral. typical formal real estate contract may look like this. Another type of contract is a marriage license. When two lovebirds make a legal commitment, the marriage license is registered with the court. Not every contract requires such legal mumbo-jumbo. Some contracts are as simple as giving one's word and a handshake.