I can't get past chapter 5

[kamameshioic]

There's a wall and I can't proceed any further beyond the location of the sniper rifle just after the start of Chapter 5.
What should I do?

[Manocheese]

Remember your training.

"Use your momentum when sprinting to break through these doors." - Shinobi 6

[kamameshioic]

I should have just rammed into the wall.
I made progress.
I thought I had to step on the same apple 100 times to make any progress (lol)
thank you