Answer:
Friction = 5.027 N
Explanation:
Kinetic friction does not change with speed or acceleration. The only thing that is required is to state that the object is moving.
Solving the force equation for friction we get:
Friction = coefficient of friction* normal force exerted by the object
Friction = u * R
here R is = 0.84 * Gravity = 0.84 * 9.81 = 8.2404 N
u = 0.61 (as stated in the question)
So frictional force will be:
Friction = 0.61 * 8.2404
Friction = 5.027 N
B. JAPAN, GERMANY, and ITALY
The main Axis powers were Japan, with Emperor Hirohito as leader; Germany, with Adolf Hitler as leader; and Italy, with Benito Mussolini as leader. They were all dictators.
The Axis powers began to form in 1936
15th October 1936 - Germany and Italy signed a friendship treaty - Rome-German Axis.
25th November 1936 - Germany and Japan signed a treaty against communism - Anti-Comintern Pact
22nd May 1939 - Germany and Italy signed a stronger alliance - Pact of Steel
27th September 1940 - Japan signed the Pact of Steel - It became known as the Tripartite Pact.
Answer:
21.53 x 10^{6} N
Explanation:
force (F) = 4.71 x 10^{3} N
distance (s) = 4.57 km = 4570 m
how much work is done.
work = force x distance
work = 4.71 x 10^{3} x 4570 = 21.53 x 10^{6} N
Answer:
90J
Explanation:
The only time work is being done is when he lifts the box off the ground. Therefore, using the work formula, 2 x 45, you get 90J. Hope this helps someone.
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