Question

An object is on a van's windshield that's inclined 30 degrees to the vertical. To what acceleration must the van move in order to keep the object there, neglecting all frictional forces including drag?

Answer 1

N=T
Mg*cos30=ma*sin30
a=g*ctg30=[img width=18,height=22]file:///C:/Users/Sekventa/AppData/Local/Temp/OICE_B2309807-6412-4640-ABE8-66F01E899734.0/msohtmlclip1/01/clip_image004.gif[/img]g
a-accelaretion ofvan