Questions from College Physics

Q: A train is traveling down a straight track at 20 m/

A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of -1.0 m/s2 as long as the train is in motion. How far does the train move duri...

Q: A car accelerates uniformly from rest to a speed of 40.

A car accelerates uniformly from rest to a speed of 40.0 mi/h in 12.0 s. Find (a) The distance the car travels during this time and (b) The constant acceleration of the car.

Q: A car starts from rest and travels for 5.0 s

A car starts from rest and travels for 5.0 s with a uniform acceleration of +1.5 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied for 3....

Q: A ball is projected horizontally from the top of a building.

A ball is projected horizontally from the top of a building. One second later, another ball is projected horizontally from the same point with the same velocity. (a) At what point in the motion will t...

Q: A car starts from rest and travels for t1 seconds with a

A car starts from rest and travels for t1 seconds with a uniform acceleration a1. The driver then applies the brakes, causing a uniform acceleration a2. If the brakes are applied for t2 seconds, (a) H...

Q: In the Daytona 500 auto race, a Ford Thunderbird and a

In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 71.5 m/s. The driver of the Thunderbird realizes that she must make a pit stop, and...

Q: The kinematic equations can describe phenomena other than motion through space and

The kinematic equations can describe phenomena other than motion through space and time. Suppose x represents a person’s bank account balance. The units of x would be dollars ($), and velocity υ would...

Q: A hockey player is standing on his skates on a frozen pond

A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 12 m/s, skates by with the puck. After 3.0 s, the first player makes up his mind to c...

Q: A train 4.00 x 102 m long is moving on

A train 4.00 x 102 m long is moving on a straight track with a speed of 82.4 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.4 km/h....

Q: A ball is thrown vertically upward with a speed of 25.

A ball is thrown vertically upward with a speed of 25.0 m/s. (a) How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the ball take to hit the ground after it...