1. A 5.3 g bullet leaves the muzzle of a rifle with a speed of 336 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.92 m long barrel of the rifle?

2. A shopper in a supermarket pushes a loaded cart with a horizontal force of 12 N. The cart has a mass of 29 kg.

(a) How far will it move in 10.0 s, starting from rest? (Ignore friction.)

(b) How far will it move in 10.0 s if the shopper places his 30 N child in the cart before he begins to push it?

Solution Summary

This calculates force and distance of physics problems.

... to worry about your 20 kg mass to find your forces. ... Of course, the trade-off to that force advantage is that ... need twice as much string as the distance you want ...

... in F1 is doubled and the distance is cut ... of the electric field to produce this force. ... the three major differences between gravitational and electrical forces. ...

... (a) 1. a longer stopping distance. ... If the body is moving against non-conservative forces like friction ... stops due to non- conservative frictional force and its ...

... 24. A graph shows distance on the vertical axis and time on the horizontal axis. ... There are three forces on the truck: gravity mg, force by engine F, and ...

... are not moving and are at a distance 1.000 × 10 ... State whether this force is attractive or repulsive ... each of the electric and gravitational forces would increase ...

Modern Physics Multiple Choice Questions. 1. Use the work-energy theorem to find the force required to ... rest to a speed of 1.50 x 107 m/s in a distance of 0.0125 ...

... net vertical force and net horizontal force must equal ... Moment of the forces about the point of constant ... mgd where d is the perpendicular distance between the ...

... This distance varies as the two planets orbit the sun ... Calculate the net force pulling on Earth during a ... calculate each of the gravitational forces between Earth ...

Solving for Example Physics Problems. ... and a 8 C charge repel each other with 10 N of force. ... and a 4 C charge repel each other when placed the same distance apart ...