A zm , Crowbar is employed to lift a load of Zookg, what force must be appled to
One end of the Crowbar when a stump
acting as a
the Crowbar
a fulcrum is placed under
.
on which the load tests 2 Neglect the
weight of the Crowbar
O sm
away from the end​

If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.

In general, the friction involved in sliding an object is the friction involved in rolling an object. less than greater than equal to

An astronaunt applies a force of 450n to an asteroid and it accelerates at 7.00 m/s?