A box of mass 400kg rests on a carrier of truck that is moving at a speed of 120km/he - Science - Force and Laws of Motion

Question

A box of mass 400kg rests on a carrier of truck that is moving at a
speed of 120km/he The driver applies brake and slow to a speed of
60km/he in 20 sec Find the constant acceleration generated upon the
box

Anshu Agrawal · Accepted Answer

Dear student,
v=u+athere v=60km/hr =16
67m/su = 120km/hr = 33
33m/st = 20 sec16 67 = 33
33 +a×20-16 66 =20aa=-16 6620=-0
83m/s2This the constant deceleration
This is constant deceleration of the truck
For the box it will be 0 83m/s2

Regards

A box of mass 400kg rests on a carrier of truck that is moving at a speed of 120km/he. The driver applies brake and slow to a speed of 60km/he in 20 sec. Find the constant acceleration generated upon the box.