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?
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.