posted by Ariel .
A railroad car with a mass of 2000kg is rolling at a speed of 15m/s. What force would be required to stop the car in 10 seconds?
english HELP -
Rewrite the following sentences to ensure that the pronouns are used appropriately and that they have antecedents. If the sentence is correct, type "correct". (Each question is worth one point)
1-It said on the news that the economy was improving.
2- Waitresses appreciate tips when they get them.
3-In colonial America, the merchants used to advertise to you with pictorial signs.