Monday
March 30, 2015

Homework Help: physics

Posted by seanso on Sunday, January 22, 2012 at 11:25pm.

A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s.
(a) How long is the truck in motion?
s

(b) What is the average velocity of the truck during the motion described?
m/s

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A truck on a straight road starts from rest and accelerates at 3.0 m/...
Physics - A truck on a straight road starts from rest, accelerating at 2.00 m/s2...
College Physics!!! - A truck on a straight road starts from rest accelerating at...
physics - A truck on a straight road starts from rest, accelerating at 2.00 m/s2...
Physics - A truck on a straight road starts from rest and accelerates at 2.8 m/s...
physics, dynamics - Car A starts from rest at t = 0 and travels along a straight...
applied maths - A tram starts from rest atone station and comes to a stop one ...
physics - A certain truck can slow at a maximum rate of 4.6 m/s2 in an emergency...
Physics - A truck traveling at a constant speed of 40.0 km/h applies its brakes ...
Physics - A police car is at rest beside a road, looking for speeders. A car ...

Members